RHSA-2026:85968HighCVSS 7.5

Red Hat Security Advisory: openssl security update

Published
October 20, 2026
Last Modified
October 26, 2026

🔗 CVE IDs covered (2)

CVE-2026-63072 →CVE-2026-84782 →

📋 Description

CVE-2026-63072 — openssl: heap buffer overflow in CMS key unwrapping CVE-2026-84782 — openssl: compat-openssl: openssl: Information disclosure via DTLS handshake retransmission

🎯 Affected products105

  • Red Hat Enterprise Linux BaseOS (v. 8)
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-1:1.1.1k-18.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-1:1.1.1k-18.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • openssl-1:1.1.1k-18.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-1:1.1.1k-18.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-1:1.1.1k-18.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • openssl-1:1.1.1k-18.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-1:1.1.1k-18.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • openssl-1:1.1.1k-18.el8_6.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-1:1.1.1k-18.el8_6.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-1:1.1.1k-18.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • openssl-1:1.1.1k-18.el8_6.src as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-1:1.1.1k-18.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-1:1.1.1k-18.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-1:1.1.1k-18.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • openssl-1:1.1.1k-18.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • openssl-debuginfo-1:1.1.1k-18.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • +75 more not shown

✅ 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 (5)