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Vulnerability · Published Jun 29, 2026 · Assigned by redhat

CVE-2026-12912Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image

High 7.3

In plain English

A high-severity heap buffer overflow in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.4%top 62.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8compat-libtiff33.9.4-16.el8_10ALSA-2026:47183
AlmaLinux:10libtiff4.6.0-8.el10_2.4ALSA-2026:41892
AlmaLinux:8libtiff4.0.9-38.el8_10ALSA-2026:47184
AlmaLinux:9libtiff4.4.0-18.el9_8.1ALSA-2026:42668
AlmaLinux:10libtiff-devel4.6.0-8.el10_2.4ALSA-2026:41892
AlmaLinux:8libtiff-devel4.0.9-38.el8_10ALSA-2026:47184
AlmaLinux:9libtiff-devel4.4.0-18.el9_8.1ALSA-2026:42668
AlmaLinux:10libtiff-tools4.6.0-8.el10_2.4ALSA-2026:41892
AlmaLinux:8libtiff-tools4.0.9-38.el8_10ALSA-2026:47184
AlmaLinux:9libtiff-tools4.4.0-18.el9_8.1ALSA-2026:42668
Debian:12tiffno fix listedDEBIAN-CVE-2026-12912
Debian:13tiff4.7.0-3+deb13u3DEBIAN-CVE-2026-12912
Debian:14tiff4.7.2-1DEBIAN-CVE-2026-12912
Rocky Linux:8compat-libtiff30:3.9.4-16.el8_10RLSA-2026:47183
Rocky Linux:10libtiff0:4.6.0-8.el10_2.4RLSA-2026:41892
Rocky Linux:8libtiff0:4.0.9-38.el8_10RLSA-2026:47184
Rocky Linux:9libtiff0:4.4.0-18.el9_8.1RLSA-2026:42668
Ubuntu:22.04:LTSneuronno fix listedUBUNTU-CVE-2026-12912
Ubuntu:25.10qtwebengine-opensource-srcno fix listedUBUNTU-CVE-2026-12912
Ubuntu:26.10qtwebengine-opensource-srcno fix listedUBUNTU-CVE-2026-12912
Ubuntu:25.10texmakerno fix listedUBUNTU-CVE-2026-12912
Ubuntu:22.04:LTStiffno fix listedUBUNTU-CVE-2026-12912
Ubuntu:24.04:LTStiffno fix listedUBUNTU-CVE-2026-12912
Ubuntu:25.10tiffno fix listedUBUNTU-CVE-2026-12912
Ubuntu:26.04:LTStiffno fix listedUBUNTU-CVE-2026-12912
Ubuntu:26.10tiffno fix listedUBUNTU-CVE-2026-12912

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support see references
Red Hat Red Hat Hardened Images see references
Red Hat Red Hat OpenShift AI 3.0 see references
Red Hat Red Hat OpenShift AI 3.0 see references
Red Hat Red Hat OpenShift AI 3.0 see references
Red Hat Red Hat OpenShift AI 3.0 see references
Red Hat Red Hat OpenShift AI 3.0 see references
Red Hat Red Hat OpenShift AI 3.2 see references
Red Hat Red Hat OpenShift AI 3.2 see references

Weakness: CWE-122 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

References