RHSA-2026:50808MediumCVSS 7.5

Red Hat Security Advisory: libpng security update

Published
August 5, 2026
Last Modified
October 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-33416 →

📋 Description

CVE-2026-33416 — libpng: libpng: Arbitrary code execution due to use-after-free vulnerability

🎯 Affected products38

  • Red Hat Enterprise Linux Server (v. 7 ELS)
  • Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libpng-2:1.5.13-8.el7_9.3.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-2:1.5.13-8.el7_9.3.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-2:1.5.13-8.el7_9.3.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-2:1.5.13-8.el7_9.3.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-2:1.5.13-8.el7_9.3.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-2:1.5.13-8.el7_9.3.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-2:1.5.13-8.el7_9.3.src as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-2:1.5.13-8.el7_9.3.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.ppc as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.s390 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-debuginfo-2:1.5.13-8.el7_9.3.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libpng-devel-2:1.5.13-8.el7_9.3.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-devel-2:1.5.13-8.el7_9.3.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-devel-2:1.5.13-8.el7_9.3.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-devel-2:1.5.13-8.el7_9.3.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-devel-2:1.5.13-8.el7_9.3.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libpng-devel-2:1.5.13-8.el7_9.3.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • +8 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 reduce exposure, avoid processing untrusted PNG image files with applications that utilize libpng. Restricting the source of PNG images to trusted origins can limit the attack surface.

🔗 References (4)