Vulnerability-Lookup

RHSA-2026:19144

Vulnerability from csaf_redhat - Published: 2026-05-19 16:19 - Updated: 2026-05-29 10:21

Summary

Red Hat Security Advisory: golang-github-openprinting-ipp-usb security update

Severity

Important

Notes

Topic: An update for golang-github-openprinting-ipp-usb is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: HTTP reverse proxy, backed by IPP-over-USB connection to device. It enables driverless support for USB devices capable of using IPP-over-USB protocol. Security Fix(es): * crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application (CVE-2026-33810) * golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282) * crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) * crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-32280

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.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 4 products

Product	Version	Remediation
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.x86_64	—	Vendor Fix fix

Known not affected 9 products

Product	Identifier	Version	Remediation
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-0:0.9.27-7.el10_2.src		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.aarch64		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.ppc64le		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.s390x		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.x86_64		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.aarch64		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.ppc64le		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.s390x		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.x86_64		—

Threats

Impact Important

CVE-2026-32282

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.

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Affected products

Fixed 4 products

Product	Version	Remediation
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.x86_64	—	Vendor Fix fix Workaround

Known not affected 9 products

Product	Version	Remediation
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-0:0.9.27-7.el10_2.src	—	Workaround
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.aarch64	—	Workaround
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.ppc64le	—	Workaround
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.s390x	—	Workaround
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.x86_64	—	Workaround
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.aarch64	—	Workaround
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.ppc64le	—	Workaround
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.s390x	—	Workaround
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.x86_64	—	Workaround

Threats

Impact Moderate

CVE-2026-32283

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).

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-764 - Multiple Locks of a Critical Resource

Affected products

Fixed 4 products

Product	Version	Remediation
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.x86_64	—	Vendor Fix fix

Known not affected 9 products

Product	Identifier	Version	Remediation
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-0:0.9.27-7.el10_2.src		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.aarch64		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.ppc64le		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.s390x		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.x86_64		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.aarch64		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.ppc64le		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.s390x		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.x86_64		—

Threats

Impact Important

CVE-2026-33810

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.

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L

CWE-1289 - Improper Validation of Unsafe Equivalence in Input

Affected products

Fixed 4 products

Product	Version	Remediation
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.x86_64	—	Vendor Fix fix

Known not affected 9 products

Product	Identifier	Version	Remediation
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-0:0.9.27-7.el10_2.src		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.aarch64		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.ppc64le		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.s390x		—
Unresolved product id: AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.x86_64		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.aarch64		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.ppc64le		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.s390x		—
Unresolved product id: AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.x86_64		—

Threats

Impact Important

References

36 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:19144	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2456335	external
https://bugzilla.redhat.com/show_bug.cgi?id=2456336	external
https://bugzilla.redhat.com/show_bug.cgi?id=2456338	external
https://bugzilla.redhat.com/show_bug.cgi?id=2456339	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-32280	self
https://bugzilla.redhat.com/show_bug.cgi?id=2456339	external
https://www.cve.org/CVERecord?id=CVE-2026-32280	external
https://nvd.nist.gov/vuln/detail/CVE-2026-32280	external
https://go.dev/cl/758320	external
https://go.dev/issue/78282	external
https://groups.google.com/g/golang-announce/c/0uY…	external
https://pkg.go.dev/vuln/GO-2026-4947	external
https://access.redhat.com/security/cve/CVE-2026-32282	self
https://bugzilla.redhat.com/show_bug.cgi?id=2456336	external
https://www.cve.org/CVERecord?id=CVE-2026-32282	external
https://nvd.nist.gov/vuln/detail/CVE-2026-32282	external
https://go.dev/cl/763761	external
https://go.dev/issue/78293	external
https://pkg.go.dev/vuln/GO-2026-4864	external
https://access.redhat.com/security/cve/CVE-2026-32283	self
https://bugzilla.redhat.com/show_bug.cgi?id=2456338	external
https://www.cve.org/CVERecord?id=CVE-2026-32283	external
https://nvd.nist.gov/vuln/detail/CVE-2026-32283	external
https://go.dev/cl/763767	external
https://go.dev/issue/78334	external
https://pkg.go.dev/vuln/GO-2026-4870	external
https://access.redhat.com/security/cve/CVE-2026-33810	self
https://bugzilla.redhat.com/show_bug.cgi?id=2456335	external
https://www.cve.org/CVERecord?id=CVE-2026-33810	external
https://nvd.nist.gov/vuln/detail/CVE-2026-33810	external
https://go.dev/cl/763763	external
https://go.dev/issue/78332	external
https://pkg.go.dev/vuln/GO-2026-4866	external

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      "title": "golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root"
    },
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      "cve": "CVE-2026-33810",
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            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "AppStream-10.2.Z:golang-github-openprinting-ipp-usb-0:0.9.27-7.el10_2.src",
            "AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.aarch64",
            "AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.ppc64le",
            "AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.s390x",
            "AppStream-10.2.Z:golang-github-openprinting-ipp-usb-debugsource-0:0.9.27-7.el10_2.x86_64",
            "AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.aarch64",
            "AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.ppc64le",
            "AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.s390x",
            "AppStream-10.2.Z:ipp-usb-0:0.9.27-7.el10_2.x86_64",
            "AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.aarch64",
            "AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.ppc64le",
            "AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.s390x",
            "AppStream-10.2.Z:ipp-usb-debuginfo-0:0.9.27-7.el10_2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application"
    }
  ]
}

CVE-2026-32280 (GCVE-0-2026-32280)

Vulnerability from cvelistv5 – Published: 2026-04-08 01:06 – Updated: 2026-04-08 17:46

Title

Unexpected work during chain building in crypto/x509

Summary

During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

References

4 references

URL	Tags
https://go.dev/cl/758320
https://go.dev/issue/78282
https://groups.google.com/g/golang-announce/c/0uY…
https://pkg.go.dev/vuln/GO-2026-4947

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/x509	Affected: 0 , < 1.25.9 (semver) Affected: 1.26.0-0 , < 1.26.2 (semver)

Credits

Jakub Ciolek - https://ciolek.dev

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
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        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
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              "name": "Certificate.buildChains"
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        "dateUpdated": "2026-04-08T01:06:58.595Z",
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          "url": "https://pkg.go.dev/vuln/GO-2026-4947"
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}

CVE-2026-32282 (GCVE-0-2026-32282)

Vulnerability from cvelistv5 – Published: 2026-04-08 01:06 – Updated: 2026-04-13 18:20

Title

TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix

Summary

On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root. The Linux fchmodat syscall silently ignores the AT_SYMLINK_NOFOLLOW flag, which Root.Chmod uses to avoid symlink traversal. Root.Chmod checks its target before acting and returns an error if the target is a symlink lying outside the root, so the impact is limited to cases where the target is replaced with a symlink between the check and operation.

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-61 - UNIX Symbolic Link (Symlink) Following

Assigner

References

4 references

URL	Tags
https://go.dev/cl/763761
https://go.dev/issue/78293
https://groups.google.com/g/golang-announce/c/0uY…
https://pkg.go.dev/vuln/GO-2026-4864

Impacted products

1 product

Vendor	Product	Version
Go standard library	internal/syscall/unix	Affected: 0 , < 1.25.9 (semver) Affected: 1.26.0-0 , < 1.26.2 (semver)

Credits

Uuganbayar Lkhamsuren (https://github.com/uug4na)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
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          "defaultStatus": "unaffected",
          "packageName": "internal/syscall/unix",
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          "product": "internal/syscall/unix",
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            {
              "name": "Fchmodat"
            }
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          "lang": "en",
          "value": "Uuganbayar Lkhamsuren (https://github.com/uug4na)"
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      ],
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          "lang": "en",
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              "description": "CWE-61: UNIX Symbolic Link (Symlink) Following",
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        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4864"
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      "title": "TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix"
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CVE-2026-32283 (GCVE-0-2026-32283)

Vulnerability from cvelistv5 – Published: 2026-04-08 01:06 – Updated: 2026-04-13 18:19

Title

Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls

Summary

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-667 - Improper Locking

Assigner

References

4 references

URL	Tags
https://go.dev/cl/763767
https://go.dev/issue/78334
https://groups.google.com/g/golang-announce/c/0uY…
https://pkg.go.dev/vuln/GO-2026-4870

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/tls	Affected: 0 , < 1.25.9 (semver) Affected: 1.26.0-0 , < 1.26.2 (semver)

Credits

Jakub Ciolek - https://ciolek.dev/

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "collectionURL": "https://pkg.go.dev",
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              "name": "Conn.handleKeyUpdate"
            },
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              "name": "clientHandshakeStateTLS13.establishHandshakeKeys"
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              "name": "clientHandshakeStateTLS13.readServerFinished"
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            },
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              "name": "Conn.HandshakeContext"
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              "name": "Conn.Read"
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              "name": "Conn.Write"
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              "name": "Dial"
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              "name": "DialWithDialer"
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          "lang": "en",
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              "description": "CWE-667: Improper Locking",
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    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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CVE-2026-33810 (GCVE-0-2026-33810)

Vulnerability from cvelistv5 – Published: 2026-04-08 01:06 – Updated: 2026-04-20 17:23

Title

Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509

Summary

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE

CWE-295 - Improper Certificate Validation

Assigner

References

4 references

URL	Tags
https://go.dev/cl/763763
https://go.dev/issue/78332
https://groups.google.com/g/golang-announce/c/0uY…
https://pkg.go.dev/vuln/GO-2026-4866

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/x509	Affected: 1.26.0-0 , < 1.26.2 (semver)

Credits

Riyas from Saintgits College of Engineering k1rnt @1seal

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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            "url": "http://www.openwall.com/lists/oss-security/2026/04/19/4"
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          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/20/1"
          }
        ],
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        {
          "lang": "en",
          "value": "k1rnt"
        },
        {
          "lang": "en",
          "value": "@1seal"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-295: Improper Certificate Validation",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-08T01:06:56.546Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/cl/763763"
        },
        {
          "url": "https://go.dev/issue/78332"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4866"
        }
      ],
      "title": "Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-33810",
    "datePublished": "2026-04-08T01:06:56.546Z",
    "dateReserved": "2026-03-23T20:35:32.814Z",
    "dateUpdated": "2026-04-20T17:23:21.823Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2026:19144

CVE-2026-32280 (GCVE-0-2026-32280)

CVE-2026-32282 (GCVE-0-2026-32282)

CVE-2026-32283 (GCVE-0-2026-32283)

CVE-2026-33810 (GCVE-0-2026-33810)

Tags

Sightings

Nomenclature