Skip to content
Fencer Vulns
high 7.3

CVE-2026-12912 json

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

published 2026-06-29 4 mo ago modified 2026-11-04 4 d ago also EUVD-2026-40151

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

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).

Patch / fix

  • Red Hat Red Hat Enterprise Linux 10 0:4.6.0-8.el10_2.4
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:4.6.0-6.el10_0.4
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:3.9.4-12.el7_9.3, 0:4.0.3-35.el7_9.3
  • Red Hat Red Hat Enterprise Linux 8 0:3.9.4-16.el8_10, 0:4.0.9-38.el8_10
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:3.9.4-13.el8_4.3, 0:4.0.9-18.el8_4.3
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:3.9.4-13.el8_4.3, 0:4.0.9-18.el8_4.3
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:3.9.4-13.el8_6.3, 0:4.0.9-21.el8_6.3
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:3.9.4-13.el8_6.3, 0:4.0.9-21.el8_6.3
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:3.9.4-13.el8_8.3, 0:4.0.9-29.el8_8.3
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:3.9.4-13.el8_8.3, 0:4.0.9-29.el8_8.3
  • Red Hat Red Hat Enterprise Linux 9 0:4.4.0-18.el9_8.1
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:4.4.0-8.el9_2.6
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:4.4.0-12.el9_4.6
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:4.4.0-13.el9_6.6
  • Red Hat Red Hat Hardened Images 4.7.1-2.4.hum1
  • Red Hat Red Hat OpenShift AI 3.0 1790276884, 1790276886, 1790276889, 1790276974, 1790277045
  • Red Hat Red Hat OpenShift AI 3.2 1790703494, 1790703497, 1790703506, 1790703568, 1790703586, 1790703590
  • Red Hat Red Hat OpenShift AI 3.4 1790703542
  • tiff Debian 13 4.7.0-3+deb13u3
  • tiff Debian 14 4.7.2-1

debian advisories DEBIAN-CVE-2026-12912

  • libtiff RHEL 8 4.0.9-38.el8_10
  • libtiff-tools RHEL 8 4.0.9-38.el8_10
  • compat-libtiff3 RHEL 8 3.9.4-16.el8_10
  • libtiff RHEL 9 4.4.0-18.el9_8.1
  • libtiff-tools RHEL 9 4.4.0-18.el9_8.1
  • libtiff RHEL 10.2 4.6.0-8.el10_2.4
  • libtiff-tools RHEL 10.2 4.6.0-8.el10_2.4
  • libtiff hummingbird 1 4.7.1-2.4.hum1

red hat advisories RHSA-2026:83550RHSA-2026:69292RHSA-2026:61657RHSA-2026:58556RHSA-2026:58553RHSA-2026:58554

  • tiff Linux Micro 6.1 4.7.2-slfo.1.1_1.1
  • tiff Linux Micro 6.0 4.7.2-1.1
  • tiff SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +11 more 4.0.9-150000.45.69.1
  • tiff SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Package Hub 15 SP7 +1 more 4.7.2-150600.3.29.1
  • tiff SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 4.7.2-160000.1.1
  • tiff SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 4.0.9-44.115.1

suse advisories SUSE-SU-2026:22886-1SUSE-SU-2026:22796-1SUSE-SU-2026:3054-1SUSE-SU-2026:3027-1SUSE-SU-2026:2853-1SUSE-SU-2026:22590-1

  • tiff openSUSE Leap 16.0 4.7.2-160000.1.1
  • tiff-man openSUSE Leap 16.0 4.7.2-160000.1.1
  • tiff openSUSE Tumbleweed 4.7.2-1.1

opensuse advisories openSUSE-SU-2026:21289-1openSUSE-SU-2026:11225-1

  • compat-libtiff3 AlmaLinux 8 3.9.4-16.el8_10
  • libtiff AlmaLinux 8 4.0.9-38.el8_10
  • libtiff-tools AlmaLinux 8 4.0.9-38.el8_10
  • libtiff AlmaLinux 9 4.4.0-18.el9_8.1
  • libtiff-tools AlmaLinux 9 4.4.0-18.el9_8.1
  • libtiff AlmaLinux 10 4.6.0-8.el10_2.4
  • libtiff-tools AlmaLinux 10 4.6.0-8.el10_2.4

almalinux advisories ALSA-2026:47183ALSA-2026:47184ALSA-2026:42668ALSA-2026:41892

  • compat-libtiff3 Rocky Linux 8 3.9.4-16.el8_10
  • libtiff Rocky Linux 8 4.0.9-38.el8_10
  • libtiff Rocky Linux 10 4.6.0-8.el10_2.4
  • libtiff Rocky Linux 9 4.4.0-18.el9_8.1

rocky linux advisories RLSA-2026:47183RLSA-2026:47184RLSA-2026:41892RLSA-2026:42668

  • libtiff Azure Linux 3.0 4.6.0-14

azure linux advisories AZL-91722

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-12912 updated cvss 7.3

libtiff: libtiff: Heap-based buffer overflow via crafted PixarLog-compressed TIFF image

  • Red Hat Enterprise Linux 6 libtiff
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 mingw-libtiff, mingw32-libtiff, mingw64-libtiff
    affected: workaround, no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libtiff-tools 4.4.0-13.el9_6.6
    fixed: vendor fix RHSA-2026:50774
  • Red Hat Enterprise Linux AppStream (v. 8) libtiff 4.0.9-38.el8_10, compat-libtiff3 3.9.4-16.el8_10
    fixed: vendor fix RHSA-2026:47183
  • Red Hat Enterprise Linux AppStream (v. 9) libtiff 4.4.0-18.el9_8.1
    fixed: vendor fix RHSA-2026:42668
  • Red Hat Enterprise Linux AppStream (v. 10) libtiff 4.6.0-8.el10_2.4
    fixed: vendor fix RHSA-2026:41892
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) libtiff 4.0.9-18.el8_4.3, compat-libtiff3 3.9.4-13.el8_4.3
    fixed: vendor fix RHSA-2026:54642
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) libtiff 4.0.9-21.el8_6.3, compat-libtiff3 3.9.4-13.el8_6.3
    fixed: vendor fix RHSA-2026:54640
show 20 more
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) libtiff 4.0.9-29.el8_8.3, compat-libtiff3 3.9.4-13.el8_8.3
    fixed: vendor fix RHSA-2026:54638
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) libtiff 4.4.0-8.el9_2.6
    fixed: vendor fix RHSA-2026:58554
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) libtiff 4.4.0-12.el9_4.6
    fixed: vendor fix RHSA-2026:58556
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) libtiff 4.6.0-6.el10_0.4
    fixed: vendor fix RHSA-2026:49671
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) libtiff 4.4.0-13.el9_6.6
    fixed: vendor fix RHSA-2026:50774
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) libtiff 4.0.9-18.el8_4.3, compat-libtiff3 3.9.4-13.el8_4.3
    fixed: vendor fix RHSA-2026:54642
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) libtiff 4.0.9-21.el8_6.3, compat-libtiff3 3.9.4-13.el8_6.3
    fixed: vendor fix RHSA-2026:54640
  • Red Hat Enterprise Linux AppStream TUS (v.8.8) libtiff 4.0.9-29.el8_8.3, compat-libtiff3 3.9.4-13.el8_8.3
    fixed: vendor fix RHSA-2026:54638
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libtiff-tools 4.4.0-18.el9_8.1
    fixed: vendor fix RHSA-2026:42668
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libtiff-tools 4.6.0-8.el10_2.4
    fixed: vendor fix RHSA-2026:41892
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libtiff-tools 4.6.0-6.el10_0.4
    fixed: vendor fix RHSA-2026:49671
  • Red Hat Enterprise Linux CRB (v. 8) libtiff-tools 4.0.9-38.el8_10
    fixed: vendor fix RHSA-2026:47184
  • Red Hat Enterprise Linux Server (v. 7 ELS) libtiff 4.0.3-35.el7_9.3, compat-libtiff3 3.9.4-12.el7_9.3
    fixed: vendor fix RHSA-2026:61657
  • Red Hat Enterprise Linux Server Optional (v. 7 ELS) libtiff-tools 4.0.3-35.el7_9.3
    fixed: vendor fix RHSA-2026:83550
  • Red Hat Hardened Images libtiff 4.7.1-2.4.hum1, libtiff-tools 4.7.1-2.4.hum1
    fixed: vendor fix RHSA-2026:34890
  • Red Hat OpenShift AI 3.0 rhai/base-image-cpu-rhel9 1790277045, rhai/base-image-tpu-rhel9 1790276884, rhai/base-image-cuda-rhel9 1790276974, rhai/base-image-rocm-rhel9 1790276886, rhai/base-image-spyre-rhel9 1790276889
    fixed: vendor fix RHSA-2026:73960
  • Red Hat OpenShift AI 3.2 rhai/base-image-cpu-rhel9 1790703590, rhai/base-image-tpu-rhel9 1790703497, rhai/base-image-cuda-rhel9 1790703586, rhai/base-image-rocm-rhel9 1790703494, rhai/base-image-rocm-rhel9 1790703506, rhai/base-image-spyre-rhel9 1790703568
    fixed: vendor fix RHSA-2026:74460
  • Red Hat OpenShift AI 3.4 rhai/base-image-neuron-rhel9 1790703542
    fixed: vendor fix RHSA-2026:74674
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) compat-libtiff3-debuginfo 3.9.4-13.el8_4.3, compat-libtiff3-debugsource 3.9.4-13.el8_4.3 Red Hat Enterprise Linux AppStream AUS (v.8.6) libtiff-devel 4.0.9-21.el8_6.3, libtiff-debuginfo 4.0.9-21.el8_6.3, libtiff-debugsource 4.0.9-21.el8_6.3, libtiff-tools-debuginfo 4.0.9-21.el8_6.3, compat-libtiff3-debuginfo 3.9.4-13.el8_6.3, compat-libtiff3-debugsource 3.9.4-13.el8_6.3 Red Hat Enterprise Linux AppStream E4S (v.8.8) libtiff-devel 4.0.9-29.el8_8.3, libtiff-debuginfo 4.0.9-29.el8_8.3, libtiff-debugsource 4.0.9-29.el8_8.3, libtiff-tools-debuginfo 4.0.9-29.el8_8.3, compat-libtiff3-debuginfo 3.9.4-13.el8_8.3, compat-libtiff3-debugsource 3.9.4-13.el8_8.3 Red Hat Enterprise Linux AppStream E4S (v.9.2) libtiff-devel 4.4.0-8.el9_2.6, libtiff-debuginfo 4.4.0-8.el9_2.6, libtiff-debugsource 4.4.0-8.el9_2.6, libtiff-tools-debuginfo 4.4.0-8.el9_2.6 Red Hat Enterprise Linux AppStream E4S (v.9.4) libtiff-devel 4.4.0-12.el9_4.6, libtiff-debuginfo 4.4.0-12.el9_4.6, libtiff-debugsource 4.4.0-12.el9_4.6, libtiff-tools-debuginfo 4.4.0-12.el9_4.6 Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) compat-libtiff3-debuginfo 3.9.4-13.el8_4.3, compat-libtiff3-debugsource 3.9.4-13.el8_4.3
    +3 more products
    Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) libtiff-devel 4.0.9-21.el8_6.3, libtiff-debuginfo 4.0.9-21.el8_6.3, libtiff-debugsource 4.0.9-21.el8_6.3, libtiff-tools-debuginfo 4.0.9-21.el8_6.3, compat-libtiff3-debuginfo 3.9.4-13.el8_6.3, compat-libtiff3-debugsource 3.9.4-13.el8_6.3 Red Hat Enterprise Linux AppStream TUS (v.8.8) libtiff-devel 4.0.9-29.el8_8.3, libtiff-debuginfo 4.0.9-29.el8_8.3, libtiff-debugsource 4.0.9-29.el8_8.3, libtiff-tools-debuginfo 4.0.9-29.el8_8.3, compat-libtiff3-debuginfo 3.9.4-13.el8_8.3, compat-libtiff3-debugsource 3.9.4-13.el8_8.3 Red Hat Enterprise Linux Server (v. 7 ELS) compat-libtiff3-debuginfo 3.9.4-12.el7_9.3
    not affected: vulnerable code not present
  • Red Hat Hardened Images boost
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CISA ADP 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat Red Hat Hardened Images
  • Red Hat Red Hat OpenShift AI 3.0
  • Red Hat Red Hat OpenShift AI 3.2
  • Red Hat Red Hat OpenShift AI 3.4
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.