RHSA-2026:19586HighCVSS 7.8

Red Hat Security Advisory: libtiff security update

Published
May 20, 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 EUS (v. 10.0)
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-0:4.6.0-6.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-0:4.6.0-6.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-0:4.6.0-6.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-0:4.6.0-6.el10_0.3.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-0:4.6.0-6.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debuginfo-0:4.6.0-6.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debuginfo-0:4.6.0-6.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-debuginfo-0:4.6.0-6.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debuginfo-0:4.6.0-6.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-debuginfo-0:4.6.0-6.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debuginfo-0:4.6.0-6.el10_0.3.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-debuginfo-0:4.6.0-6.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debuginfo-0:4.6.0-6.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-debugsource-0:4.6.0-6.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debugsource-0:4.6.0-6.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-debugsource-0:4.6.0-6.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debugsource-0:4.6.0-6.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-debugsource-0:4.6.0-6.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debugsource-0:4.6.0-6.el10_0.3.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-debugsource-0:4.6.0-6.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-debugsource-0:4.6.0-6.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-devel-0:4.6.0-6.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-devel-0:4.6.0-6.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-devel-0:4.6.0-6.el10_0.3.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-devel-0:4.6.0-6.el10_0.3.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libtiff-tools-0:4.6.0-6.el10_0.3.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-tools-0:4.6.0-6.el10_0.3.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libtiff-tools-0:4.6.0-6.el10_0.3.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • +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)