RHSA-2026:25910HighCVSS 7.8

Red Hat Security Advisory: libtiff security update

Published
June 15, 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 products42

  • Red Hat Enterprise Linux Server (v. 7 ELS)
  • Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libtiff-0:4.0.3-35.el7_9.2.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-0:4.0.3-35.el7_9.2.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-0:4.0.3-35.el7_9.2.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-0:4.0.3-35.el7_9.2.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-0:4.0.3-35.el7_9.2.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-0:4.0.3-35.el7_9.2.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-0:4.0.3-35.el7_9.2.src as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-0:4.0.3-35.el7_9.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.ppc as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.s390 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-debuginfo-0:4.0.3-35.el7_9.2.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
  • libtiff-devel-0:4.0.3-35.el7_9.2.i686 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-devel-0:4.0.3-35.el7_9.2.ppc as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-devel-0:4.0.3-35.el7_9.2.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-devel-0:4.0.3-35.el7_9.2.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-devel-0:4.0.3-35.el7_9.2.s390 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • libtiff-devel-0:4.0.3-35.el7_9.2.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
  • +12 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)