RHSA-2026:87246
Vulnerability from csaf_redhat - Published: 2026-10-21 18:36 - Updated: 2026-10-21 21:34A flaw was found in the net/http package of the Golang standard library. The HTTP client drops sensitive headers after following a cross-domain redirect. For example, a request to `a.com/` containing an Authorization header redirected to `b.com/` will not send that header to `b.com`. However, the sensitive headers would be restored if the client received a subsequent same-domain redirect. For example, a chain of redirects from `a.com/`, to `b.com/1`, and finally to `b.com/2` would incorrectly send the Authorization header to `b.com/2`.
| Product | Identifier | Version | Remediation |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:delve-0:1.26.1-1.module+el8.6.0+24782+a062e766.src::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:delve-0:1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:delve-debuginfo-0:1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:delve-debugsource-0:1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:go-toolset-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:golang-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.src::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:golang-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:golang-bin-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:golang-docs-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.noarch::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:golang-misc-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.noarch::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:golang-race-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:golang-src-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.noarch::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.AUS:golang-tests-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.noarch::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:delve-0:1.26.1-1.module+el8.6.0+24782+a062e766.src::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:delve-0:1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:delve-debuginfo-0:1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:delve-debugsource-0:1.26.1-1.module+el8.6.0+24782+a062e766.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:go-toolset-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:golang-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.src::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:golang-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:golang-bin-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:golang-docs-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.noarch::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:golang-misc-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.noarch::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:golang-race-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.x86_64::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:golang-src-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.noarch::go-toolset:rhel8 | — |
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| Unresolved product id: AppStream-8.6.0.Z.EUS.EXTENSION:golang-tests-0:1.26.10-4.module+el8.6.0+25114+90ecdb41.noarch::go-toolset:rhel8 | — |
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A flaw was found in net/http. Handling Proxy-Authorization and Proxy-Authenticate headers during cross-origin redirects allows these headers to be inadvertently forwarded, potentially exposing sensitive authentication credentials. This flaw allows a network-based attacker to manipulate redirect responses, unintentionally exposing authentication details to unauthorized parties.
A flaw was found in the Golang crypto/internal/nistec package. Due to the usage of a variable time instruction in the assembly implementation of an internal function, a small number of bits of secret scalars are leaked on the ppc64le architecture. Considering how this function is used, this leakage is likely insufficient to recover the private key when P-256 is used in any well-known protocols.
A flaw was found in Go's crypto/x509 package. This vulnerability allows improper certificate validation, bypassing policy constraints via using ExtKeyUsageAny in VerifyOptions.KeyUsages.
A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security (TLS) session resumption when certificate authority (CA) settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing a client or server to establish a connection that should have been rejected. This could lead to an authentication bypass under specific conditions.
A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applied, and only the last constraint will be considered.
A flaw was found in the cmd/compile package in the Go standard library. The compiler fails to correctly check for integer overflow or underflow in arithmetic operations involving loop induction variables. As a result, the compiler allows invalid memory indexing to occur at runtime, potentially leading to memory corruption.
A flaw was found in the cmd/compile package in the Go standard library. A no-op interface conversion prevented the compiler from correctly identifying non-overlapping memory moves. As a result, the compiler allows unsafe memory move operations to occur at runtime, potentially causing data corruption, memory corruption or unexpected application behavior.
A flaw was found in the `crypto/x509` package of `golang`. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by presenting a specially crafted X.509 certificate with a large number of DNS Subject Alternative Name (SAN) entries. The certificate verification process, specifically the `VerifyHostname` function, incurs excessive computational overhead due to repeated string operations when processing these entries. This can lead to a significant performance degradation or unresponsiveness of systems validating such certificates.
A flaw was found in the Go standard library packages `crypto/x509` and `crypto/tls`. During the process of building a certificate chain, an attacker can provide a large number of intermediate certificates. This excessive input is not properly limited, leading to an uncontrolled amount of work being performed. This can result in a denial of service (DoS) condition, making the affected system or application unavailable to legitimate users.
A flaw was found in Go's `crypto/x509` package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service (DoS) for applications or systems performing certificate validation.
A flaw was found in the internal/syscall/unix package in the Go standard library. If the target of the `Root.Chmod` function is replaced with a symbolic link during execution, specifically after `Root.Chmod` checks the target but before acting, the `chmod` operation will be performed on the file the symbolic link points to. This issue can bypass directory restrictions and lead to unauthorized permission changes on the filesystem.
A flaw was found in the `crypto/tls` package within the Go (golang) standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock, leading to uncontrolled consumption of resources and ultimately a denial of service (DoS).
A flaw was found in the `crypto/x509` package within Go (golang). When verifying a certificate chain, excluded DNS (Domain Name System) constraints are not correctly applied to wildcard DNS Subject Alternative Names (SANs) if the case of the SAN differs from the constraint. This oversight could allow an attacker to bypass certificate validation, potentially leading to the acceptance of a malicious certificate that should have been rejected. This issue specifically impacts the validation of trusted certificate chains.
A flaw was found in the `net` package of Go (golang), specifically when using the `LookupCNAME` function with the `cgo` DNS resolver. A remote attacker could exploit this by providing a very long Canonical Name (CNAME) response. This can trigger a double-free of C memory, leading to a crash and a Denial of Service (DoS) for the affected application.
A flaw was found in the HTTP/2 protocol implementation within the Go standard library (golang.org/x/net and net/http/internal/http2). A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGS_MAX_FRAME_SIZE parameter set to zero. This malicious frame causes the transport layer to enter an infinite loop of writing CONTINUATION frames, leading to resource exhaustion and a Denial of Service (DoS) condition.
A flaw was found in the `encoding/asn1` package in Go. An attacker could provide a specially crafted, deeply-nested Abstract Syntax Notation One (ASN.1) structure, leading to excessive recursion during the `Unmarshal` operation. This could result in stack exhaustion and a Denial of Service (DoS) condition.
A flaw was found in the `net/mail` package of the Go programming language. An attacker could provide specially crafted inputs to the `ParseAddress`, `ParseAddressList`, or `ParseDate` functions. This could lead to excessive consumption of CPU and memory resources, resulting in a Denial of Service (DoS) for applications processing these inputs.
A flaw was found in golang.org/x/net/idna. ToASCII and ToUnicode incorrectly accept Punycode-encoded labels that decode to an ASCII-only hostname (for example, xn--example-.com returns example.com instead of an error). Applications that validate the ASCII form then convert to Unicode may grant access to a restricted hostname the ASCII check would have rejected.
A flaw was found in the `net/mail` package within the Go standard library. A remote attacker could provide specially crafted, pathological email addresses. When these malformed email addresses are parsed by the `consumePhrase` function, it can lead to excessive resource consumption due to quadratic string concatenation, resulting in a Denial of Service (DoS) condition.
A flaw was found in the Golang MIME (Multipurpose Internet Mail Extensions) package. A remote attacker could exploit this vulnerability by sending a maliciously-crafted MIME header containing many invalid encoded-words. This could lead to excessive CPU consumption, resulting in a Denial of Service (DoS) for the affected system.
A flaw was found in the `net/http` component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the `ReadHeaderTimeout` is not correctly applied during this process. This oversight could allow a remote attacker to maintain open connections indefinitely, potentially leading to a Denial of Service (DoS) by exhausting server resources.
A flaw was found in the `html/template` component of Go (golang). Pathological inputs could prematurely close an unescaped forward slash ('/'), allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting (XSS), where malicious scripts are executed in a user's browser, potentially compromising user data or actions.
A flaw was found in the `encoding/xml` package of Go. The `DecodeElement` function failed to correctly track recursion depth, which could lead to stack exhaustion. A remote attacker could exploit this vulnerability by providing a specially crafted XML input, resulting in a Denial of Service (DoS) for the affected application.
A flaw was found in `net/url`, a component of `golang`. This vulnerability arises when resolving relative paths that contain numerous parent directory ('..') segments. A remote attacker could exploit this by providing a specially crafted path, leading to quadratic time complexity and excessive memory allocation. This can result in a Denial of Service (DoS) due to resource exhaustion.
A flaw was found in the `crypto/tls` package, part of `golang`. A malicious client can exploit this vulnerability by continuously sending KeyUpdate messages to a server. This forces the server to perform indefinite key derivation operations, leading to resource exhaustion and a Denial of Service (DoS) condition.
A flaw was found in Go's crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.
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"text": "A flaw was found in the net/http package of the Golang standard library. The HTTP client drops sensitive headers after following a cross-domain redirect. For example, a request to `a.com/` containing an Authorization header redirected to `b.com/` will not send that header to `b.com`. However, the sensitive headers would be restored if the client received a subsequent same-domain redirect. For example, a chain of redirects from `a.com/`, to `b.com/1`, and finally to `b.com/2` would incorrectly send the Authorization header to `b.com/2`.",
"title": "Vulnerability description"
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"category": "summary",
"text": "golang: net/http: net/http: sensitive headers incorrectly sent after cross-domain redirect",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Moderate impact: Red Hat products that include the affected golang net/http client are affected by a credential-disclosure flaw in HTTP redirect handling. When a client request with a sensitive header such as Authorization is redirected from one domain to another and then to a same-domain URL, the client can incorrectly restore and send that header to the final destination, potentially exposing credentials and other sensitive information. The current Red Hat scope contains affected entries across Red Hat Enterprise Linux, OpenShift Container Platform, and other Red Hat products and components; some affect records have a current NOTAFFECTED resolution, indicating those specific product/version records are not affected, but the record provides no technical justification for why. For affected entries marked DELEGATED, a fix is being pursued by the responsible product teams. For entries marked DEFER, the record does not establish a product-specific reason for deferral; the residual risk is that applications using the affected net/http client can still disclose sensitive headers through this redirect sequence. Red Hat\u0027s CVSS is 5.9 Moderate (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N), compared with CISA\u0027s 6.1 Moderate, reflecting Red Hat\u0027s higher attack-complexity and unchanged-scope assessment and confidentiality-only impact.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
"cvss_v3": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "golang: net/http: net/http: sensitive headers incorrectly sent after cross-domain redirect"
},
{
"cve": "CVE-2025-4673",
"cwe": {
"id": "CWE-201",
"name": "Insertion of Sensitive Information Into Sent Data"
},
"discovery_date": "2025-06-18T06:34:57.662025+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373305"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in net/http. Handling Proxy-Authorization and Proxy-Authenticate headers during cross-origin redirects allows these headers to be inadvertently forwarded, potentially exposing sensitive authentication credentials. This flaw allows a network-based attacker to manipulate redirect responses, unintentionally exposing authentication details to unauthorized parties.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "net/http: Sensitive headers not cleared on cross-origin redirect in net/http",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The issue is rated as Moderate because while it can lead to a significant compromise of confidentiality, the attack complexity is high. Successful exploitation requires a specific set of circumstances, including the use of a proxy that relies on these headers for authentication and a user being enticed to interact with a malicious URL. The vulnerability does not allow for arbitrary code execution or a direct compromise of system integrity or availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"summary": "https://groups.google.com/g/golang-announce/c/ufZ8WpEsA3A",
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},
{
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"url": "https://pkg.go.dev/vuln/GO-2025-3751"
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{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "net/http: Sensitive headers not cleared on cross-origin redirect in net/http"
},
{
"cve": "CVE-2025-22866",
"cwe": {
"id": "CWE-200",
"name": "Exposure of Sensitive Information to an Unauthorized Actor"
},
"discovery_date": "2025-02-06T17:00:56.155646+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2344219"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Golang crypto/internal/nistec package. Due to the usage of a variable time instruction in the assembly implementation of an internal function, a small number of bits of secret scalars are leaked on the ppc64le architecture. Considering how this function is used, this leakage is likely insufficient to recover the private key when P-256 is used in any well-known protocols.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/internal/nistec: golang: Timing sidechannel for P-256 on ppc64le in crypto/internal/nistec",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Moderate impact: Red Hat product builds using the Golang crypto/internal/nistec component on ppc64le are exposed to a timing side channel. A variable-time instruction in an internal assembly function leaks a small number of bits of secret scalars; given how the function is used, the leakage is likely insufficient to recover a private key when P-256 is used in well-known protocols. The current affects cover Red Hat Enterprise Linux, OpenShift Container Platform, and other Red Hat products, while entries resolved as Not a Bug, Obsolete, or delegated NOTAFFECTED are outside the actionable affected scope. For the DEFER entries, remediation is deferred because the leakage is not believed sufficient for private-key recovery in those protocols; the residual risk is limited scalar-bit leakage on ppc64le. For DELEGATED entries, the same Moderate impact is being handled by the relevant product teams, with a fix being pursued. Red Hat\u0027s CVSS is 5.3 Moderate with a network attack vector, compared with CISA\u0027s 4.0 Moderate local-vector assessment.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
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"url": "https://www.cve.org/CVERecord?id=CVE-2025-22866"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-22866",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22866"
},
{
"category": "external",
"summary": "https://go.dev/cl/643735",
"url": "https://go.dev/cl/643735"
},
{
"category": "external",
"summary": "https://go.dev/issue/71383",
"url": "https://go.dev/issue/71383"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/xU1ZCHUZw3k",
"url": "https://groups.google.com/g/golang-announce/c/xU1ZCHUZw3k"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2025-3447",
"url": "https://pkg.go.dev/vuln/GO-2025-3447"
}
],
"release_date": "2025-02-06T16:54:10.252000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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{
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "crypto/internal/nistec: golang: Timing sidechannel for P-256 on ppc64le in crypto/internal/nistec"
},
{
"cve": "CVE-2025-22874",
"cwe": {
"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"discovery_date": "2025-06-11T17:00:48.521459+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2372320"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Go\u0027s crypto/x509 package. This vulnerability allows improper certificate validation, bypassing policy constraints via using ExtKeyUsageAny in VerifyOptions.KeyUsages.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/x509: Usage of ExtKeyUsageAny disables policy validation in crypto/x509",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw is rated as an Important severity because the vulnerability was found in the certificate validation logic of the Verify function. When VerifyOptions.KeyUsages includes ExtKeyUsageAny, certificate chains containing policy graphs may bypass certificate policy validation. This flaw allows an attacker to trick the system into accepting an invalid certificate, potentially enabling spoofing attacks, the issue weakens trust decisions in affected cases and impacts system integrity. Confidentiality and availability are not affected.\n\nRed Hat Openshift Container Platform openshift-golang-builder-container ships golang 1.23 and does not ship the affected code.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"category": "external",
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"summary": "https://groups.google.com/g/golang-announce/c/ufZ8WpEsA3A",
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},
{
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"url": "https://pkg.go.dev/vuln/GO-2025-3749"
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{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
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{
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],
"title": "crypto/x509: Usage of ExtKeyUsageAny disables policy validation in crypto/x509"
},
{
"cve": "CVE-2025-68121",
"cwe": {
"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"discovery_date": "2026-02-05T18:01:30.086058+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2437111"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security (TLS) session resumption when certificate authority (CA) settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing a client or server to establish a connection that should have been rejected. This could lead to an authentication bypass under specific conditions.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is a moderate flaw because it only occurs under specific conditions, such as TLS session resumption with runtime changes to certificate authority settings. Exploitation is not straightforward and requires a controlled setup. The impact is limited to certificate validation within the same component and does not affect system availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"summary": "https://groups.google.com/g/golang-announce/c/K09ubi9FQFk",
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},
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{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
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{
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption"
},
{
"cve": "CVE-2026-27137",
"cwe": {
"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"discovery_date": "2026-03-06T22:01:38.859733+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2445345"
}
],
"notes": [
{
"category": "description",
"text": "A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applied, and only the last constraint will be considered.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/x509: Incorrect enforcement of email constraints in crypto/x509",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "crypto/x509: Incorrect enforcement of email constraints in crypto/x509"
},
{
"cve": "CVE-2026-27143",
"cwe": {
"id": "CWE-733",
"name": "Compiler Optimization Removal or Modification of Security-critical Code"
},
"discovery_date": "2026-04-08T02:01:29.491546+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2456342"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the cmd/compile package in the Go standard library. The compiler fails to correctly check for integer overflow or underflow in arithmetic operations involving loop induction variables. As a result, the compiler allows invalid memory indexing to occur at runtime, potentially leading to memory corruption.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "golang: cmd/compile: possible memory corruption after bound check elimination",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is only exploitable in applications that contain a loop structure that relies on an induction variable. An induction variable is a variable that gets modified, usually incremented or decremented, by a predictable amount on each iteration. Inside the loop, the induction variable must be directly used as the index to access or modify elements within an array or a slice. Additionally, an attacker must be able to cause an integer overflow or underflow in the induction variable to trigger this issue. Due to these reasons, this flaw has been rated with a moderate severity.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
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"category": "self",
"summary": "Canonical URL",
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},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456342"
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{
"category": "external",
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"url": "https://go.dev/issue/78333"
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"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU",
"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4868",
"url": "https://pkg.go.dev/vuln/GO-2026-4868"
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"release_date": "2026-04-08T01:06:57.168000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "golang: cmd/compile: possible memory corruption after bound check elimination"
},
{
"cve": "CVE-2026-27144",
"cwe": {
"id": "CWE-440",
"name": "Expected Behavior Violation"
},
"discovery_date": "2026-04-08T02:01:22.896153+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2456340"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the cmd/compile package in the Go standard library. A no-op interface conversion prevented the compiler from correctly identifying non-overlapping memory moves. As a result, the compiler allows unsafe memory move operations to occur at runtime, potentially causing data corruption, memory corruption or unexpected application behavior.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "golang: cmd/compile: no-op interface conversion bypasses overlap checking",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is only exploitable in applications that contain a memory move or copy operation that is subject to a no-op (no-operation) interface conversion. Furthermore, the source and destination memory addresses involved in the move or copy must overlap and an attacker must be able to supply an input that triggers this specific operation. Due to these reasons, this flaw has been rated with a moderate severity.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-27144"
},
{
"category": "external",
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-27144"
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{
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"category": "external",
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"url": "https://go.dev/issue/78371"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU",
"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4867",
"url": "https://pkg.go.dev/vuln/GO-2026-4867"
}
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"release_date": "2026-04-08T01:06:56.908000+00:00",
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{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"url": "https://access.redhat.com/errata/RHSA-2026:87246"
},
{
"category": "workaround",
"details": "To mitigate this issue, review code that performs memory copies or struct assignments. If data is being passed through an interface (such as \u0027any\u0027 or \u0027interface{}\u0027) just before a move operation, refactor the code to use concrete types or explicit pointers instead.",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "golang: cmd/compile: no-op interface conversion bypasses overlap checking"
},
{
"cve": "CVE-2026-27145",
"cwe": {
"id": "CWE-606",
"name": "Unchecked Input for Loop Condition"
},
"discovery_date": "2026-06-02T23:01:08.992540+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2484207"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `crypto/x509` package of `golang`. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by presenting a specially crafted X.509 certificate with a large number of DNS Subject Alternative Name (SAN) entries. The certificate verification process, specifically the `VerifyHostname` function, incurs excessive computational overhead due to repeated string operations when processing these entries. This can lead to a significant performance degradation or unresponsiveness of systems validating such certificates.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A flaw was found in the Go standard library crypto/x509 package. When verifying a TLS certificate hostname, VerifyHostname processed each DNS Subject Alternative Name (SAN) entry in a loop and repeatedly split the candidate hostname on \".\" characters. For certificates with a very large DNS SAN list, CPU use could grow quadratically with the number of SAN entries and hostname labels. Because hostname verification runs before the certificate chain is built, this overhead can occur even when the certificate is not trusted.\n\nRed Hat rates this issue as Important. It affects Red Hat products that include the Go standard library crypto/x509 code from an affected Go toolchain version (before Go 1.25.11, or from Go 1.26.0 through Go 1.26.3). Applications and container images built with a fixed Go release (1.25.11 or later, or 1.26.4 or later) are not affected. Community distributions such as Fedora are also affected.\n\nUpstream fix: Go 1.25.11 and Go 1.26.4 (GO-2026-5037).",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-27145"
},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484207"
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-27145",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-27145"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-27145",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27145"
},
{
"category": "external",
"summary": "https://go.dev/cl/783621",
"url": "https://go.dev/cl/783621"
},
{
"category": "external",
"summary": "https://go.dev/issue/79694",
"url": "https://go.dev/issue/79694"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw",
"url": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-5037",
"url": "https://pkg.go.dev/vuln/GO-2026-5037"
}
],
"release_date": "2026-06-02T22:01:36.954000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"details": "A flaw was found in the Go standard library crypto/x509 package. When verifying a TLS certificate hostname, VerifyHostname processed each DNS Subject Alternative Name (SAN) entry in a loop and repeatedly split the candidate hostname on \".\" characters. For certificates with a very large DNS SAN list, CPU use could grow quadratically with the number of SAN entries and hostname labels. Because hostname verification runs before the certificate chain is built, this overhead can occur even when the certificate is not trusted.\n\nRed Hat rates this issue as Important. It affects Red Hat products that include the Go standard library crypto/x509 code from an affected Go toolchain version (before Go 1.25.11, or from Go 1.26.0 through Go 1.26.3). Applications and container images built with a fixed Go release (1.25.11 or later, or 1.26.4 or later) are not affected. Community distributions such as Fedora are also affected.\n\nUpstream fix: Go 1.25.11 and Go 1.26.4 (GO-2026-5037).",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries"
},
{
"cve": "CVE-2026-32280",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-04-08T02:01:19.572351+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2456339"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Go standard library packages `crypto/x509` and `crypto/tls`. During the process of building a certificate chain, an attacker can provide a large number of intermediate certificates. This excessive input is not properly limited, leading to an uncontrolled amount of work being performed. This can result in a denial of service (DoS) condition, making the affected system or application unavailable to legitimate users.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in the Go standard library\u0027s certificate chain building process. Systems utilizing Go applications that process untrusted TLS certificates or X.509 certificate chains are susceptible to resource exhaustion when presented with an excessive number of intermediate certificates, potentially leading to service unavailability. This flaw impacts applications directly using `crypto/x509` or `crypto/tls`.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-32280"
},
{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-32280"
},
{
"category": "external",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32280"
},
{
"category": "external",
"summary": "https://go.dev/cl/758320",
"url": "https://go.dev/cl/758320"
},
{
"category": "external",
"summary": "https://go.dev/issue/78282",
"url": "https://go.dev/issue/78282"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU",
"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4947",
"url": "https://pkg.go.dev/vuln/GO-2026-4947"
}
],
"release_date": "2026-04-08T01:06:58.595000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"integrityImpact": "NONE",
"privilegesRequired": "NONE",
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building"
},
{
"cve": "CVE-2026-32281",
"cwe": {
"id": "CWE-1050",
"name": "Excessive Platform Resource Consumption within a Loop"
},
"discovery_date": "2026-04-08T02:01:00.930989+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2456333"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Go\u0027s `crypto/x509` package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service (DoS) for applications or systems performing certificate validation.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw occurs during the validation of otherwise trusted certificate chains that contain a large number of policy mappings, leading to excessive resource consumption. Exploitation requires an attacker to present a specially crafted, yet trusted, certificate chain which would require the attacker has already compromised a trusted certificate root. Red Hat continuously monitors certificate authorities and curates the set which is trusted by default for Red Hat products.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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{
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation"
},
{
"cve": "CVE-2026-32282",
"cwe": {
"id": "CWE-367",
"name": "Time-of-check Time-of-use (TOCTOU) Race Condition"
},
"discovery_date": "2026-04-08T02:01:12.683211+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2456336"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the internal/syscall/unix package in the Go standard library. If the target of the `Root.Chmod` function is replaced with a symbolic link during execution, specifically after `Root.Chmod` checks the target but before acting, the `chmod` operation will be performed on the file the symbolic link points to. This issue can bypass directory restrictions and lead to unauthorized permission changes on the filesystem.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "To exploit this issue, an attacker needs access to the system and the required permissions to create a symbolic link. Additionally, the attacker must swap the target file with a symbolic link in the exact window after the `Root.Chmod` function checks its target but before acting. Due to these conditions, this flaw has been rated with a moderate severity.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
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"category": "self",
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},
{
"category": "external",
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"category": "external",
"summary": "https://go.dev/cl/763761",
"url": "https://go.dev/cl/763761"
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"category": "external",
"summary": "https://go.dev/issue/78293",
"url": "https://go.dev/issue/78293"
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{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU",
"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4864",
"url": "https://pkg.go.dev/vuln/GO-2026-4864"
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"release_date": "2026-04-08T01:06:55.953000+00:00",
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{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"attackVector": "LOCAL",
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"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root"
},
{
"cve": "CVE-2026-32283",
"cwe": {
"id": "CWE-764",
"name": "Multiple Locks of a Critical Resource"
},
"discovery_date": "2026-04-08T02:01:16.213799+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2456338"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `crypto/tls` package within the Go (golang) standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock, leading to uncontrolled consumption of resources and ultimately a denial of service (DoS).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Important: A flaw in the Go `crypto/tls` package allows a remote attacker to cause a denial of service in applications using TLS 1.3. By sending multiple key update messages in a single record post-handshake, an attacker can trigger a connection deadlock, leading to uncontrolled resource consumption. This impacts Red Hat products utilizing the affected Go standard library for TLS 1.3 connections.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"category": "self",
"summary": "Canonical URL",
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},
{
"category": "external",
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"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU",
"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
},
{
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"url": "https://pkg.go.dev/vuln/GO-2026-4870"
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{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages"
},
{
"cve": "CVE-2026-33810",
"cwe": {
"id": "CWE-1289",
"name": "Improper Validation of Unsafe Equivalence in Input"
},
"discovery_date": "2026-04-08T02:01:09.100830+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2456335"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `crypto/x509` package within Go (golang). When verifying a certificate chain, excluded DNS (Domain Name System) constraints are not correctly applied to wildcard DNS Subject Alternative Names (SANs) if the case of the SAN differs from the constraint. This oversight could allow an attacker to bypass certificate validation, potentially leading to the acceptance of a malicious certificate that should have been rejected. This issue specifically impacts the validation of trusted certificate chains.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important flaw in the Go `crypto/x509` package that could allow an attacker to bypass certificate validation. The vulnerability arises from an incorrect application of excluded DNS constraints to wildcard DNS Subject Alternative Names (SANs) when their case differs from the constraint. This could lead to Red Hat products accepting malicious certificates from otherwise trusted chains, compromising the trust model.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
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"category": "self",
"summary": "Canonical URL",
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},
{
"category": "external",
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"category": "external",
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"category": "external",
"summary": "https://go.dev/cl/763763",
"url": "https://go.dev/cl/763763"
},
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"category": "external",
"summary": "https://go.dev/issue/78332",
"url": "https://go.dev/issue/78332"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU",
"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4866",
"url": "https://pkg.go.dev/vuln/GO-2026-4866"
}
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"release_date": "2026-04-08T01:06:56.546000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application"
},
{
"cve": "CVE-2026-33811",
"cwe": {
"id": "CWE-1341",
"name": "Multiple Releases of Same Resource or Handle"
},
"discovery_date": "2026-05-07T20:01:34.913869+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2467822"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `net` package of Go (golang), specifically when using the `LookupCNAME` function with the `cgo` DNS resolver. A remote attacker could exploit this by providing a very long Canonical Name (CNAME) response. This can trigger a double-free of C memory, leading to a crash and a Denial of Service (DoS) for the affected application.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in the Go `net` package, affecting applications configured to use the `cgo` DNS resolver. A remote attacker could trigger a double-free memory error by providing a very long CNAME response, leading to a crash of the vulnerable application and impacting service availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-33811"
},
{
"category": "external",
"summary": "RHBZ#2467822",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467822"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-33811",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33811"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33811",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33811"
},
{
"category": "external",
"summary": "https://go.dev/cl/767860",
"url": "https://go.dev/cl/767860"
},
{
"category": "external",
"summary": "https://go.dev/issue/78803",
"url": "https://go.dev/issue/78803"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M",
"url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4981",
"url": "https://pkg.go.dev/vuln/GO-2026-4981"
}
],
"release_date": "2026-05-07T19:41:19.285000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:87246"
},
{
"category": "workaround",
"details": "To mitigate this issue, applications can be configured to use the pure Go DNS resolver instead of the `cgo` DNS resolver. This can be achieved by setting the `GODEBUG` environment variable to `netdns=go`. For example, to run a Go application with this mitigation: `GODEBUG=netdns=go /path/to/your/go/application`. This change may require restarting affected applications or services to take effect. Users should verify that this change does not negatively impact DNS resolution for their specific application environment.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME"
},
{
"cve": "CVE-2026-33814",
"cwe": {
"id": "CWE-606",
"name": "Unchecked Input for Loop Condition"
},
"discovery_date": "2026-05-07T20:01:11.324941+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2467815"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the HTTP/2 protocol implementation within the Go standard library (golang.org/x/net and net/http/internal/http2). A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGS_MAX_FRAME_SIZE parameter set to zero. This malicious frame causes the transport layer to enter an infinite loop of writing CONTINUATION frames, leading to resource exhaustion and a Denial of Service (DoS) condition.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This Important denial of service flaw in the Go HTTP/2 protocol implementation allows a remote, unauthenticated attacker to exhaust system resources. By sending a specially crafted HTTP/2 SETTINGS frame with a zero-value SETTINGS_MAX_FRAME_SIZE, the vulnerable Go library enters an infinite loop, impacting the availability of services utilizing HTTP/2.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-33814"
},
{
"category": "external",
"summary": "RHBZ#2467815",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467815"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-33814",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33814"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33814",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33814"
},
{
"category": "external",
"summary": "https://go.dev/cl/761581",
"url": "https://go.dev/cl/761581"
},
{
"category": "external",
"summary": "https://go.dev/cl/761640",
"url": "https://go.dev/cl/761640"
},
{
"category": "external",
"summary": "https://go.dev/issue/78476",
"url": "https://go.dev/issue/78476"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M",
"url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4918",
"url": "https://pkg.go.dev/vuln/GO-2026-4918"
}
],
"release_date": "2026-05-07T19:41:17.631000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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},
"url": "https://access.redhat.com/errata/RHSA-2026:87246"
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame"
},
{
"cve": "CVE-2026-33818",
"cwe": {
"id": "CWE-776",
"name": "Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027)"
},
"discovery_date": "2026-08-13T22:12:37.151735+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2515815"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `encoding/asn1` package in Go. An attacker could provide a specially crafted, deeply-nested Abstract Syntax Notation One (ASN.1) structure, leading to excessive recursion during the `Unmarshal` operation. This could result in stack exhaustion and a Denial of Service (DoS) condition.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service flaw in the Go encoding/asn1 package, as it can be triggered remotely without authentication. An attacker can provide a malformed ASN.1 structure, causing excessive recursion during unmarshalling and leading to stack exhaustion, which can render the service unavailable.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-33818"
},
{
"category": "external",
"summary": "RHBZ#2515815",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515815"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-33818",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33818"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33818",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33818"
},
{
"category": "external",
"summary": "https://go.dev/cl/814980",
"url": "https://go.dev/cl/814980"
},
{
"category": "external",
"summary": "https://go.dev/issue/80405",
"url": "https://go.dev/issue/80405"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-5972",
"url": "https://pkg.go.dev/vuln/GO-2026-5972"
}
],
"release_date": "2026-08-13T21:58:52.821000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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},
"url": "https://access.redhat.com/errata/RHSA-2026:87246"
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],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal"
},
{
"cve": "CVE-2026-39820",
"cwe": {
"id": "CWE-606",
"name": "Unchecked Input for Loop Condition"
},
"discovery_date": "2026-05-07T20:01:27.800929+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2467820"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `net/mail` package of the Go programming language. An attacker could provide specially crafted inputs to the `ParseAddress`, `ParseAddressList`, or `ParseDate` functions. This could lead to excessive consumption of CPU and memory resources, resulting in a Denial of Service (DoS) for applications processing these inputs.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "net/mail: golang: Go net/mail: Denial of Service via crafted email inputs",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in the Go `net/mail` package. Applications processing untrusted email inputs via `ParseAddress`, `ParseAddressList`, or `ParseDate` functions are susceptible to excessive resource consumption, which can lead to service unavailability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-39820"
},
{
"category": "external",
"summary": "RHBZ#2467820",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467820"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-39820",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-39820"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-39820",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39820"
},
{
"category": "external",
"summary": "https://go.dev/cl/759940",
"url": "https://go.dev/cl/759940"
},
{
"category": "external",
"summary": "https://go.dev/issue/78566",
"url": "https://go.dev/issue/78566"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M",
"url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4986",
"url": "https://pkg.go.dev/vuln/GO-2026-4986"
}
],
"release_date": "2026-05-07T19:41:19.854000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"url": "https://access.redhat.com/errata/RHSA-2026:87246"
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "net/mail: golang: Go net/mail: Denial of Service via crafted email inputs"
},
{
"cve": "CVE-2026-39821",
"cwe": {
"id": "CWE-1289",
"name": "Improper Validation of Unsafe Equivalence in Input"
},
"discovery_date": "2026-05-22T16:00:52.844126+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2480756"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in golang.org/x/net/idna. ToASCII and ToUnicode incorrectly accept Punycode-encoded labels that decode to an ASCII-only hostname (for example, xn--example-.com returns example.com instead of an error). Applications that validate the ASCII form then convert to Unicode may grant access to a restricted hostname the ASCII check would have rejected.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "golang.org/x/net/idna is vulnerable to privilege escalation through incorrect Punycode label handling in ToASCII and ToUnicode. An attacker who can supply a Punycode hostname that passes an ASCII-only authorization check may have it normalized to a restricted ASCII name the application intended to block. Red Hat exposure is broad across products shipping the Go toolchain or bundling golang.org/x/net, including RHEL and RHEL-AI golang RPMs, hummingbird Go runtimes, OpenShift and ODF container builds, and Ceph/OpenShift components compiled against affected x/net versions.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-39821"
},
{
"category": "external",
"summary": "RHBZ#2480756",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480756"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-39821",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-39821"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-39821",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39821"
},
{
"category": "external",
"summary": "https://go.dev/cl/767220",
"url": "https://go.dev/cl/767220"
},
{
"category": "external",
"summary": "https://go.dev/issue/78760",
"url": "https://go.dev/issue/78760"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8",
"url": "https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-5026",
"url": "https://pkg.go.dev/vuln/GO-2026-5026"
}
],
"release_date": "2026-05-22T15:01:21.462000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2026:87246"
},
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing"
},
{
"cve": "CVE-2026-42499",
"cwe": {
"id": "CWE-1046",
"name": "Creation of Immutable Text Using String Concatenation"
},
"discovery_date": "2026-05-07T20:00:51.685602+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2467809"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `net/mail` package within the Go standard library. A remote attacker could provide specially crafted, pathological email addresses. When these malformed email addresses are parsed by the `consumePhrase` function, it can lead to excessive resource consumption due to quadratic string concatenation, resulting in a Denial of Service (DoS) condition.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "net/mail: golang: net/mail: Denial of Service via pathological email address parsing",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in the `net/mail` package of the Go standard library. A remote attacker can exploit this flaw by sending specially crafted email addresses, leading to excessive resource consumption and a denial of service in Go applications that parse email addresses using the affected library.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-42499"
},
{
"category": "external",
"summary": "RHBZ#2467809",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467809"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-42499",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42499"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42499",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42499"
},
{
"category": "external",
"summary": "https://go.dev/cl/771520",
"url": "https://go.dev/cl/771520"
},
{
"category": "external",
"summary": "https://go.dev/issue/78987",
"url": "https://go.dev/issue/78987"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M",
"url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4977",
"url": "https://pkg.go.dev/vuln/GO-2026-4977"
}
],
"release_date": "2026-05-07T19:41:18.615000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"url": "https://access.redhat.com/errata/RHSA-2026:87246"
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "net/mail: golang: net/mail: Denial of Service via pathological email address parsing"
},
{
"cve": "CVE-2026-42504",
"cwe": {
"id": "CWE-1050",
"name": "Excessive Platform Resource Consumption within a Loop"
},
"discovery_date": "2026-06-02T23:01:00.320527+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2484204"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Golang MIME (Multipurpose Internet Mail Extensions) package. A remote attacker could exploit this vulnerability by sending a maliciously-crafted MIME header containing many invalid encoded-words. This could lead to excessive CPU consumption, resulting in a Denial of Service (DoS) for the affected system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is rated as an Important severity flaw. A remote attacker could trigger a Denial of Service by sending a crafted MIME header with numerous invalid encoded-words to an application utilizing the affected Golang MIME package. This could lead to excessive CPU consumption on the system processing the malformed header, impacting service availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-42504"
},
{
"category": "external",
"summary": "RHBZ#2484204",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484204"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-42504",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42504"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42504",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42504"
},
{
"category": "external",
"summary": "https://go.dev/cl/774481",
"url": "https://go.dev/cl/774481"
},
{
"category": "external",
"summary": "https://go.dev/issue/79217",
"url": "https://go.dev/issue/79217"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw",
"url": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-5038",
"url": "https://pkg.go.dev/vuln/GO-2026-5038"
}
],
"release_date": "2026-06-02T22:01:37.219000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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},
"url": "https://access.redhat.com/errata/RHSA-2026:87246"
},
{
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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},
{
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"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-08-13T22:14:53.561638+00:00",
"ids": [
{
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"text": "2515827"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `net/http` component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the `ReadHeaderTimeout` is not correctly applied during this process. This oversight could allow a remote attacker to maintain open connections indefinitely, potentially leading to a Denial of Service (DoS) by exhausting server resources.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Important: Unencrypted HTTP/2 servers are susceptible to a denial of service due to improper handling of ReadHeaderTimeout during the client preface reading phase. This can lead to resource exhaustion and service unavailability in affected Red Hat products configured to support unencrypted HTTP/2.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56853"
},
{
"category": "external",
"summary": "RHBZ#2515827",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515827"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-56853",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56853"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56853",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56853"
},
{
"category": "external",
"summary": "https://go.dev/cl/795540",
"url": "https://go.dev/cl/795540"
},
{
"category": "external",
"summary": "https://go.dev/issue/80205",
"url": "https://go.dev/issue/80205"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-6089",
"url": "https://pkg.go.dev/vuln/GO-2026-6089"
}
],
"release_date": "2026-08-13T21:58:53.092000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"scope": "UNCHANGED",
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"title": "net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service"
},
{
"cve": "CVE-2026-56858",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"discovery_date": "2026-08-13T22:16:32.034590+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2515838"
}
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"notes": [
{
"category": "description",
"text": "A flaw was found in the `html/template` component of Go (golang). Pathological inputs could prematurely close an unescaped forward slash (\u0027/\u0027), allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting (XSS), where malicious scripts are executed in a user\u0027s browser, potentially compromising user data or actions.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "html/template: golang: Go html/template: Cross-Site Scripting via pathological input",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important cross-site scripting (XSS) vulnerability in the Go `html/template` package. Applications utilizing this package to render untrusted input are susceptible to arbitrary content injection due to a flaw in how pathological inputs are handled, potentially leading to client-side script execution.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56858"
},
{
"category": "external",
"summary": "RHBZ#2515838",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515838"
},
{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-56858"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56858",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56858"
},
{
"category": "external",
"summary": "https://go.dev/cl/807100",
"url": "https://go.dev/cl/807100"
},
{
"category": "external",
"summary": "https://go.dev/issue/80435",
"url": "https://go.dev/issue/80435"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-6091",
"url": "https://pkg.go.dev/vuln/GO-2026-6091"
}
],
"release_date": "2026-08-13T21:58:53.354000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"scores": [
{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "html/template: golang: Go html/template: Cross-Site Scripting via pathological input"
},
{
"cve": "CVE-2026-56859",
"cwe": {
"id": "CWE-776",
"name": "Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027)"
},
"discovery_date": "2026-08-13T22:16:52.493058+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2515840"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `encoding/xml` package of Go. The `DecodeElement` function failed to correctly track recursion depth, which could lead to stack exhaustion. A remote attacker could exploit this vulnerability by providing a specially crafted XML input, resulting in a Denial of Service (DoS) for the affected application.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "An Important denial of service flaw affects applications utilizing the Go `encoding/xml` package. This vulnerability arises from an issue in XML decoding where a recursion depth counter fails to reset, potentially leading to stack exhaustion when processing malicious XML input.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-56859"
},
{
"category": "external",
"summary": "RHBZ#2515840",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515840"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-56859",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56859"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56859",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56859"
},
{
"category": "external",
"summary": "https://go.dev/cl/803320",
"url": "https://go.dev/cl/803320"
},
{
"category": "external",
"summary": "https://go.dev/issue/80481",
"url": "https://go.dev/issue/80481"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/94pEornpRlI",
"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-6088",
"url": "https://pkg.go.dev/vuln/GO-2026-6088"
}
],
"release_date": "2026-08-13T21:58:52.959000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue"
},
{
"cve": "CVE-2026-56860",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-08-13T22:13:18.319384+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2515820"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in `net/url`, a component of `golang`. This vulnerability arises when resolving relative paths that contain numerous parent directory (\u0027..\u0027) segments. A remote attacker could exploit this by providing a specially crafted path, leading to quadratic time complexity and excessive memory allocation. This can result in a Denial of Service (DoS) due to resource exhaustion.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service flaw in the Go `net/url` package. Applications built with Go that process untrusted URLs containing parent directory segments (\u0027..\u0027) may be vulnerable to excessive resource consumption due to quadratic time complexity in path resolution. This can lead to a denial of service, impacting the availability of affected services.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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{
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{
"category": "vendor_fix",
"date": "2026-10-21T18:36:18+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"title": "net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution"
},
{
"cve": "CVE-2026-56862",
"cwe": {
"id": "CWE-1050",
"name": "Excessive Platform Resource Consumption within a Loop"
},
"discovery_date": "2026-08-13T22:16:41.928450+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2515839"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `crypto/tls` package, part of `golang`. A malicious client can exploit this vulnerability by continuously sending KeyUpdate messages to a server. This forces the server to perform indefinite key derivation operations, leading to resource exhaustion and a Denial of Service (DoS) condition.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service vulnerability in the `golang` `crypto/tls` package. A remote, unauthenticated attacker can exploit this flaw by continuously sending `KeyUpdate` messages during a TLS handshake, forcing the server to perform indefinite key derivation operations. This resource exhaustion can lead to a denial of service for applications and services in Red Hat products that use the affected `crypto/tls` library and are exposed to untrusted network clients.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"title": "crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages"
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{
"cve": "CVE-2026-111943",
"cwe": {
"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"discovery_date": "2026-10-20T09:38:36.160000+00:00",
"ids": [
{
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"text": "2556068"
}
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"notes": [
{
"category": "description",
"text": "A flaw was found in Go\u0027s crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated Important because Go applications validating TLS certificates could accept unauthorized certificates issued by distrusted intermediate Certificate Authorities, potentially compromising the integrity and confidentiality of secure network communications. Any Go-based client or server relying on standard certificate verification may be exposed to man-in-the-middle attacks if an attacker intercepts traffic using certificates derived from these intermediate keys. Exploitation requires specific network positioning and certificates generated by the untrusted intermediate authorities, limiting opportunistic widespread abuse.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:87246"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
},
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],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates"
}
]
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.