RHSA-2026:19150HighCVSS 7.8

Red Hat Security Advisory: libtiff security update

Published
May 19, 2026
Last Modified
October 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-4775 →

📋 Description

CVE-2026-4775 — libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing

🎯 Affected products39

  • Red Hat Enterprise Linux AppStream (v. 10)
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-0:4.6.0-8.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-0:4.6.0-8.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-0:4.6.0-8.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-0:4.6.0-8.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-0:4.6.0-8.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debuginfo-0:4.6.0-8.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debuginfo-0:4.6.0-8.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-debuginfo-0:4.6.0-8.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debuginfo-0:4.6.0-8.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-debuginfo-0:4.6.0-8.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debuginfo-0:4.6.0-8.el10_2.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-debuginfo-0:4.6.0-8.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debuginfo-0:4.6.0-8.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-debugsource-0:4.6.0-8.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debugsource-0:4.6.0-8.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-debugsource-0:4.6.0-8.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debugsource-0:4.6.0-8.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-debugsource-0:4.6.0-8.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debugsource-0:4.6.0-8.el10_2.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-debugsource-0:4.6.0-8.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-debugsource-0:4.6.0-8.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-devel-0:4.6.0-8.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-devel-0:4.6.0-8.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-devel-0:4.6.0-8.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-devel-0:4.6.0-8.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • libtiff-tools-0:4.6.0-8.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-tools-0:4.6.0-8.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • libtiff-tools-0:4.6.0-8.el10_2.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • +9 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, avoid processing untrusted or maliciously crafted TIFF files with applications linked against the libtiff library. If processing untrusted TIFF files is unavoidable, consider running the affected applications within a sandboxed environment to limit the potential impact of successful exploitation. This operational control helps contain the effects of an out-of-bounds write, reducing the risk of denial of service or arbitrary code execution.

🔗 References (4)