RHSA-2026:12740MediumCVSS 6.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Published
May 1, 2026
Last Modified
August 25, 2026

🔗 CVE IDs covered (5)

CVE-2026-4046 →CVE-2026-5435 →CVE-2026-5450 →CVE-2026-5928 →CVE-2026-6238 →

📋 Description

CVE-2026-4046 — glibc: glibc: Denial of Service via iconv() function with specific character sets CVE-2026-5435 — glibc: glibc: Out-of-bounds write via TSIG record processing CVE-2026-5450 — glibc: glibc: Heap Buffer Overflow in scanf with %mc format specifier and large width CVE-2026-5928 — glibc: glibc: Information disclosure or denial of service via ungetwc function with specific wide character encodings CVE-2026-6238 — glibc: glibc: Application crash or uninitialized memory read via crafted DNS response

🎯 Affected products5

  • Red Hat Hardened Images
  • glibc-main@aarch64 as a component of Red Hat Hardened Images
  • glibc-main@noarch as a component of Red Hat Hardened Images
  • glibc-main@src as a component of Red Hat Hardened Images
  • glibc-main@x86_64 as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ 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. 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 (9)