RHSA-2026:57021HighCVSS 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Published
August 19, 2026
Last Modified
October 22, 2026

🔗 CVE IDs covered (1)

CVE-2026-54876 →

📋 Description

CVE-2026-54876 — openssl: openssl-src: OpenSSL: Memory leak leads to Denial of Service in OCSP response checking

🎯 Affected products8

  • Red Hat Hardened Images
  • openssl3-1:3.5.7-2.2.hum1@src as a component of Red Hat Hardened Images
  • openssl3-devel-1:3.5.7-2.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • openssl3-devel-1:3.5.7-2.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • openssl3-devel-engine-1:3.5.7-2.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • openssl3-devel-engine-1:3.5.7-2.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • openssl3-libs-1:3.5.7-2.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • openssl3-libs-1:3.5.7-2.2.hum1@x86_64 as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: No broadly applicable mitigation is available. If an affected client application provides a configuration setting for OCSP response checking, operators can temporarily disable it where their certificate revocation policy permits. This blocks the vulnerable response-checking path but removes OCSP-based revocation checks. Clients that must keep OCSP response checking enabled remain exposed.

🔗 References (5)