RHSA-2026:22485

Vulnerability from csaf_redhat - Published: 2026-06-02 14:17 - Updated: 2026-06-08 09:46
Summary
Red Hat Security Advisory: Red Hat Lightspeed (formerly Insights) for Runtimes security update
Severity
Important
Notes
Topic: An update is now available for Red Hat Lightspeed (formerly Insights) for Runtimes on RHEL 9. 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: An update is now available for Red Hat Lightspeed (formerly Insights) for Runtimes on RHEL 9. Security fix(es): * gRPC-Go: Authorization bypass due to improper HTTP/2 path validation (CVE-2026-33186) * crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281) * internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282) * crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) * crypto/x509: crypto/tls: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) * crypto/x509: Certificate validation bypass due to incorrect DNS constraint application (CVE-2026-33810) 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.

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.

CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64
Vendor Fix fix
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64
Threats
Impact Important

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.

CWE-1050 - Excessive Platform Resource Consumption within a Loop
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64
Workaround
Threats
Impact Moderate

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.

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64
Workaround
Threats
Impact Moderate

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).

CWE-764 - Multiple Locks of a Critical Resource
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64
Vendor Fix fix
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64
Threats
Impact Important

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 `:path` pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed `:path` that omits the mandatory leading slash. This allows the attacker to bypass defined security policies, potentially leading to unauthorized access to services or information disclosure.

CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64
Workaround
Threats
Impact Important

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.

CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x
Vendor Fix fix
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64
Vendor Fix fix
Product Identifier Version Remediation
Unresolved product id: Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:22485 self
https://access.redhat.com/security/cve/CVE-2026-32280 external
https://access.redhat.com/security/cve/CVE-2026-32281 external
https://access.redhat.com/security/cve/CVE-2026-32282 external
https://access.redhat.com/security/cve/CVE-2026-32283 external
https://access.redhat.com/security/cve/CVE-2026-33186 external
https://access.redhat.com/security/cve/CVE-2026-33810 external
https://access.redhat.com/security/updates/classi… 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-2026-32281 self
https://bugzilla.redhat.com/show_bug.cgi?id=2456333 external
https://www.cve.org/CVERecord?id=CVE-2026-32281 external
https://nvd.nist.gov/vuln/detail/CVE-2026-32281 external
https://go.dev/cl/758061 external
https://go.dev/issue/78281 external
https://pkg.go.dev/vuln/GO-2026-4946 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-2026-33186 self
https://bugzilla.redhat.com/show_bug.cgi?id=2449833 external
https://www.cve.org/CVERecord?id=CVE-2026-33186 external
https://nvd.nist.gov/vuln/detail/CVE-2026-33186 external
https://github.com/grpc/grpc-go/security/advisori… 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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          "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"
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        {
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        "id": "CWE-367",
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            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64"
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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-2026-33186",
      "cwe": {
        "id": "CWE-551",
        "name": "Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"
      },
      "discovery_date": "2026-03-20T23:02:27.802640+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64"
          ]
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      ],
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2449833"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 `:path` pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed `:path` that omits the mandatory leading slash. This allows the attacker to bypass defined security policies, potentially leading to unauthorized access to services or information disclosure.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation",
          "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"
        }
      ],
      "product_status": {
        "fixed": [
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          "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le",
          "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x",
          "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64"
        ],
        "known_not_affected": [
          "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-33186"
        },
        {
          "category": "external",
          "summary": "RHBZ#2449833",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449833"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-33186",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-33186"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33186",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33186"
        },
        {
          "category": "external",
          "summary": "https://github.com/grpc/grpc-go/security/advisories/GHSA-p77j-4mvh-x3m3",
          "url": "https://github.com/grpc/grpc-go/security/advisories/GHSA-p77j-4mvh-x3m3"
        }
      ],
      "release_date": "2026-03-20T22:23:32.147000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-02T14:17:27+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:22485"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, implement infrastructure-level normalization to ensure all incoming HTTP/2 `:path` headers are properly formatted with a leading slash before reaching the gRPC-Go server. This can be achieved by configuring a reverse proxy or API gateway to validate and normalize the `:path` header. Ensure that any such intermediary is properly configured and restarted to apply the changes, which may temporarily impact service availability.",
          "product_ids": [
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-operator-bundle@sha256:0afe9ca958403340a8ab4d89e07c4b685ea69cbfd5b94c3bc76b5db85afd152d_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64"
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      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
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            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64"
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation"
    },
    {
      "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",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
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      ],
      "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": "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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          "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le",
          "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x",
          "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64"
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        "known_not_affected": [
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-33810"
        },
        {
          "category": "external",
          "summary": "RHBZ#2456335",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456335"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-33810",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-33810"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33810",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33810"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/763763",
          "url": "https://go.dev/cl/763763"
        },
        {
          "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"
        }
      ],
      "release_date": "2026-04-08T01:06:56.546000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-02T14:17:27+00:00",
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            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64"
          ],
          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2026:22485"
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "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": [
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            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:77f1e202337d716cd2fe7a6701efdeed9cae719f3dfdadf7a0fd4574a11b6ed8_amd64",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:b362fa9e2a18aa84f2393cce8555d34a9c8de822c65756897717ad54e2aa7c45_ppc64le",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:bb7ee5838e15f9a31c12af6f4629bb90ac0b41eeee98e0bac4642c6a764944cb_s390x",
            "Red Hat Lightspeed (formerly Insights) for Runtimes 1:registry.redhat.io/rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator@sha256:c7d68fdde482c4df1768b99ca6cb6fb358410a152020aca8cfac27bcf77d813b_arm64"
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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"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

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Detection rules are retrieved from Rulezet.

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