RHSA-2026:94442MediumCVSS 7.1

Red Hat Security Advisory: gnutls security update

Published
November 3, 2026
Last Modified
November 3, 2026

🔗 CVE IDs covered (1)

CVE-2026-42012 →

📋 Description

CVE-2026-42012 — gnutls: gnutls: Certificate validation bypass due to improper handling of URI and SRV SANs

🎯 Affected products26

  • Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-0:2.12.23-22.el6_10.1.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-0:2.12.23-22.el6_10.1.s390 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-0:2.12.23-22.el6_10.1.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-0:2.12.23-22.el6_10.1.src as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-0:2.12.23-22.el6_10.1.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-debuginfo-0:2.12.23-22.el6_10.1.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-debuginfo-0:2.12.23-22.el6_10.1.i686 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-debuginfo-0:2.12.23-22.el6_10.1.s390 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-debuginfo-0:2.12.23-22.el6_10.1.s390 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-debuginfo-0:2.12.23-22.el6_10.1.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-debuginfo-0:2.12.23-22.el6_10.1.s390x as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-debuginfo-0:2.12.23-22.el6_10.1.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-debuginfo-0:2.12.23-22.el6_10.1.x86_64 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-devel-0:2.12.23-22.el6_10.1.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-devel-0:2.12.23-22.el6_10.1.s390 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-devel-0:2.12.23-22.el6_10.1.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-devel-0:2.12.23-22.el6_10.1.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-guile-0:2.12.23-22.el6_10.1.i686 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-guile-0:2.12.23-22.el6_10.1.s390 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-guile-0:2.12.23-22.el6_10.1.s390x as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-guile-0:2.12.23-22.el6_10.1.x86_64 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • gnutls-utils-0:2.12.23-22.el6_10.1.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-utils-0:2.12.23-22.el6_10.1.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • gnutls-utils-0:2.12.23-22.el6_10.1.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (4)