RHSA-2026:38805MediumCVSS 7.5

Red Hat Security Advisory: openssl security update

Published
July 13, 2026
Last Modified
July 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-28390 →

📋 Description

CVE-2026-28390 — openssl: OpenSSL: Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing

🎯 Affected products35

  • Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-1:1.1.1k-17.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-1:1.1.1k-17.el8_6.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-1:1.1.1k-17.el8_6.src as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-debuginfo-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-debuginfo-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-debuginfo-1:1.1.1k-17.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-debuginfo-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-debuginfo-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-debugsource-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-debugsource-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-debugsource-1:1.1.1k-17.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-debugsource-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-debugsource-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-devel-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-devel-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-devel-1:1.1.1k-17.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-devel-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-devel-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-libs-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-libs-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-libs-1:1.1.1k-17.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-libs-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-libs-1:1.1.1k-17.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-libs-debuginfo-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • openssl-libs-debuginfo-1:1.1.1k-17.el8_6.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • openssl-libs-debuginfo-1:1.1.1k-17.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • +5 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: Applications that process Cryptographic Message Syntax (CMS) EnvelopedData messages should be configured to only accept input from trusted sources. Restricting network access to services that process untrusted CMS data can also reduce exposure to this Denial of Service vulnerability.

🔗 References (4)