RHSA-2026:58979MediumCVSS 7.5

Red Hat Security Advisory: libgcrypt security update

Published
August 24, 2026
Last Modified
September 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-41989 →

📋 Description

CVE-2026-41989 — Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext

🎯 Affected products24

  • Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-0:1.8.5-4.el8_4.1.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-0:1.8.5-4.el8_4.1.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-debuginfo-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-debuginfo-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-debuginfo-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-debuginfo-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-debugsource-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-debugsource-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-debugsource-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-debugsource-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-devel-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-devel-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-devel-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-devel-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-devel-debuginfo-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-devel-debuginfo-0:1.8.5-4.el8_4.1.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libgcrypt-devel-debuginfo-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libgcrypt-devel-debuginfo-0:1.8.5-4.el8_4.1.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)

✅ 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)