RHSA-2026:4772MediumCVSS 5.9

Red Hat Security Advisory: glibc security update

Published
March 17, 2026
Last Modified
August 17, 2026

🔗 CVE IDs covered (2)

CVE-2025-15281 →CVE-2026-0915 →

📋 Description

CVE-2025-15281 — glibc: wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory CVE-2026-0915 — glibc: glibc: Information disclosure via zero-valued network query

🎯 Affected products200

  • Red Hat Enterprise Linux AppStream (v. 8)
  • Red Hat Enterprise Linux BaseOS (v. 8)
  • Red Hat Enterprise Linux CRB (v. 8)
  • compat-libpthread-nonshared-0:2.28-251.el8_10.31.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • compat-libpthread-nonshared-0:2.28-251.el8_10.31.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • compat-libpthread-nonshared-0:2.28-251.el8_10.31.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • compat-libpthread-nonshared-0:2.28-251.el8_10.31.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • glibc-0:2.28-251.el8_10.31.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-251.el8_10.31.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-251.el8_10.31.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-251.el8_10.31.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-251.el8_10.31.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-0:2.28-251.el8_10.31.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-0:2.28-251.el8_10.31.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-0:2.28-251.el8_10.31.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-0:2.28-251.el8_10.31.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-0:2.28-251.el8_10.31.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.i686 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • glibc-all-langpacks-debuginfo-0:2.28-251.el8_10.31.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 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: To mitigate this issue, consider refactoring the use of the wordexp function to not use the WRDE_REUSE and WRDE_APPEND flags together. 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)