RHSA-2026:59721MediumCVSS 4.2

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Published
August 26, 2026
Last Modified
October 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-19542 →

📋 Description

CVE-2026-19542 — glibc: Fix out-of-bounds array write in tdelete

🎯 Affected products200

  • Red Hat Hardened Images
  • compat-libpthread-nonshared-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • compat-libpthread-nonshared-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-0:2.43-8.2.hum1@src as a component of Red Hat Hardened Images
  • glibc-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-all-langpacks-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-all-langpacks-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-benchtests-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-benchtests-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-common-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-common-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-devel-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-devel-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-doc-0:2.43-8.2.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images
  • glibc-doc-0:2.43-8.2.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
  • glibc-gconv-extra-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-gconv-extra-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-langpack-aa-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-langpack-aa-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-langpack-af-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-langpack-af-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-langpack-agr-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-langpack-agr-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-langpack-ak-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-langpack-ak-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-langpack-am-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-langpack-am-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • glibc-langpack-an-0:2.43-8.2.hum1@aarch64 as a component of Red Hat Hardened Images
  • glibc-langpack-an-0:2.43-8.2.hum1@x86_64 as a component of Red Hat Hardened Images
  • +170 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: This issue is reachable only through applications that use glibc's tsearch/tdelete APIs and allow construction of extremely deep trees (on the order of a million nodes). Restrict such services to trusted clients and enforce process memory limits so large tree growth is impractical.

🔗 References (5)