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CVE-2025-61727

CVE-2025-61727 · Improper application of excluded DNS name constraints when verifying wildcard names in crypto/x509

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example.com does not prevent a leaf certificate from claiming the SAN *.example.com.

CVSS 6.5 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • crypto/x509

    Versions
    • ≥ 0, < 1.24.11: Affected (semver)
    • ≥ 1.25.0, < 1.25.5: Affected (semver)

    Update to 1.24.11; Update to 1.25.5

  • golang-1.19 Debian:12

    Versions
    • 1.19.10-1
    • 1.19.10-2
    • 1.19.11-1
    • 1.19.12-1
    • 1.19.12-2
    • 1.19.12-2~bpo11+1
    • 1.19.12-2~bpo12+1
    • 1.19.13-1
    • 1.19.13-1~bpo11+1
    • 1.19.13-1~bpo12+1
    • 1.19.8-2
    • 1.19.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.24 Debian:13

    Versions
    • 1.24.12-1
    • 1.24.13-1
    • 1.24.13-2
    • 1.24.4-1
    • 1.24.4-2
    • 1.24.4-3
    • 1.24.4-4
    • 1.24.7-1
    • 1.24.8-1
    • 1.24.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.24 Ubuntu:22.04:LTS

    Versions
    • 1.24.4-1ubuntu1~22.04.1
    • 1.24.4-1ubuntu1~22.04.2
    • 1.24.13-2~22.04.1
    • 1.24.13-2~22.04.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.25 Ubuntu:22.04:LTS

    Versions
    • 1.25.14-1~ubuntu0.22.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.24 Ubuntu:24.04:LTS

    Versions
    • 1.24.4-1ubuntu1~24.04.1
    • 1.24.4-1ubuntu1~24.04.2
    • 1.24.13-2~24.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.25 Ubuntu:24.04:LTS

    Versions
    • 1.25.14-1~ubuntu0.24.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.24 Ubuntu:25.10

    Versions
    • 1.24.2-1
    • 1.24.2-2
    • 1.24.4-1
    • 1.24.4-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.25 Ubuntu:25.10

    Versions
    • 1.25.0-0ubuntu1
    • 1.25.7-2~25.10.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.24 Ubuntu:26.04:LTS

    Versions
    • 1.24.4-1ubuntu1
    • 1.24.9-1
    • 1.24.13-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.25 Ubuntu:26.04:LTS

    Versions
    • 1.25.0-0ubuntu1
    • 1.25.7-2
    • 1.25.14-1~ubuntu0.26.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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