RHSA-2026:20607HighCVSS 7.5

Red Hat Security Advisory: buildah security update

Published
May 26, 2026
Last Modified
August 1, 2026

🔗 CVE IDs covered (3)

CVE-2026-34986 →CVE-2026-32280 →CVE-2026-32283 →

📋 Description

CVE-2026-32280 — crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building CVE-2026-32283 — crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages CVE-2026-34986 — github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object

🎯 Affected products22

  • Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-2:1.39.9-1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-2:1.39.9-1.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-2:1.39.9-1.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-2:1.39.9-1.el9_6.src as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-2:1.39.9-1.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-debuginfo-2:1.39.9-1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-debuginfo-2:1.39.9-1.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-debuginfo-2:1.39.9-1.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-debuginfo-2:1.39.9-1.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-debugsource-2:1.39.9-1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-debugsource-2:1.39.9-1.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-debugsource-2:1.39.9-1.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-debugsource-2:1.39.9-1.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-tests-2:1.39.9-1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-tests-2:1.39.9-1.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-tests-2:1.39.9-1.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-tests-2:1.39.9-1.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-tests-debuginfo-2:1.39.9-1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-tests-debuginfo-2:1.39.9-1.el9_6.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-tests-debuginfo-2:1.39.9-1.el9_6.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • buildah-tests-debuginfo-2:1.39.9-1.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)

✅ 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 (6)