RHSA-2026:33228MediumCVSS 5.0

Red Hat Security Advisory: glibc security update

Published
June 29, 2026
Last Modified
July 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-5450 →

📋 Description

CVE-2026-5450 — glibc: glibc: Heap Buffer Overflow in scanf with %mc format specifier and large width

🎯 Affected products200

  • Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • compat-libpthread-nonshared-0:2.28-225.el8_8.17.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • compat-libpthread-nonshared-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • compat-libpthread-nonshared-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • glibc-0:2.28-225.el8_8.17.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-0:2.28-225.el8_8.17.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • glibc-0:2.28-225.el8_8.17.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-0:2.28-225.el8_8.17.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-0:2.28-225.el8_8.17.src as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • glibc-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • glibc-all-langpacks-0:2.28-225.el8_8.17.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-all-langpacks-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-all-langpacks-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • glibc-all-langpacks-debuginfo-0:2.28-225.el8_8.17.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-all-langpacks-debuginfo-0:2.28-225.el8_8.17.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • glibc-all-langpacks-debuginfo-0:2.28-225.el8_8.17.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • glibc-all-langpacks-debuginfo-0:2.28-225.el8_8.17.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-all-langpacks-debuginfo-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • glibc-all-langpacks-debuginfo-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • glibc-all-langpacks-debuginfo-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-all-langpacks-debuginfo-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • glibc-benchtests-debuginfo-0:2.28-225.el8_8.17.i686 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-benchtests-debuginfo-0:2.28-225.el8_8.17.i686 as a component of Red Hat Enterprise Linux BaseOS TUS (v.8.8)
  • glibc-benchtests-debuginfo-0:2.28-225.el8_8.17.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • glibc-benchtests-debuginfo-0:2.28-225.el8_8.17.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.8)
  • glibc-benchtests-debuginfo-0:2.28-225.el8_8.17.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • +170 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 (4)