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OpenAdvisories
High · 8.8 CVE-2026-112896 BIT-pillow-2026-112896EUVD-2026-104658GHSA-pchr-8j38-3x4pPYSEC-2026-4334

Pillow: TIFF encoder ColorMap plane-size mismatch causes a heap out-of-bounds read

Published Oct 19, 2026 · Updated Oct 20, 2026 · Assigned by GitHub_M

Description

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's TIFF encoder can read beyond a ColorMap buffer when retained TIFF metadata has a plane size inconsistent with BitsPerSample. A small TIFF can be opened normally and then retain a crafted ColorMap that is reused when the image is saved. An application that re-encodes the attacker's TIFF with libtiff can trigger the out-of-bounds read. This can disclose heap memory in the output or crash the process. This issue is fixed in version 13.0.0.

Affected products

VendorProductAffectedFixed
python-pillow Pillow < 13.0.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 pillow No fix yet —
Debian 13 pillow No fix yet —
Debian 12 pillow No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 pillow 12.3.0-1ubuntu2 USN-9064-1
Ubuntu 26.04 LTS pillow 12.1.1-2ubuntu1.5 USN-9064-1
Ubuntu 24.04 LTS pillow 10.2.0-1ubuntu1.5 USN-9064-1
Ubuntu 22.04 LTS pillow 9.0.1-1ubuntu0.7 USN-9064-1
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 20.04 LTS pillow 7.0.0-4ubuntu0.9+esm2 USN-9064-1
Ubuntu Pro 20.04 LTS pillow-python2 No fix yet —
Ubuntu Pro 18.04 LTS pillow 5.1.0-1ubuntu0.8+esm3 USN-9064-1
Ubuntu Pro 16.04 LTS pillow 3.1.2-0ubuntu1.6+esm4 USN-9064-1
Ubuntu Pro 14.04 LTS pillow 2.3.0-1ubuntu3.4+esm6 USN-9064-1
ReleasePackageFixed inAdvisory
SLES 15 SP7 python-Pillow 7.2.0-150300.3.33.1 SUSE-SU-2026:5038-1
SLES 15 SP6 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
SLES 15 SP5 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
SLES 15 SP4 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
SLES 3 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 python-Pillow 11.3.0-160000.9.1 SUSE-SU-2026:24656-1
SLES for SAP 15 SP6 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
SLES for SAP 15 SP5 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
SLES for SAP 15 SP4 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
SLES 16.0 python-Pillow 11.3.0-160000.9.1 SUSE-SU-2026:24656-1
SLE HPC 15 SP5 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
SLE HPC 15 SP4 python-Pillow 9.5.0-150400.5.28.1 SUSE-SU-2026:5194-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed python-Pillow 13.0.0-1.1 openSUSE-SU-2026:12230-1
openSUSE Leap 16.0 python-Pillow 11.3.0-160000.9.1 openSUSE-SU-2026:22246-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 python3-pillow +2 9.4.0-2.amzn2023.0.12 ALAS2023-2026-3411

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling gftools 0.10.4-r1 —
Wolfi rolling kserve-storage-controller 0.21.0-r9 —
Wolfi rolling kubeflow-pipelines-visualization-server 2.17.2-r7 —
Wolfi rolling open-webui 0.12.3-r6 —
Wolfi rolling py3.10-pillow No fix yet —
Wolfi rolling py3.11-pillow +2 13.0.0-r0 —
Wolfi rolling superset-6.0 6.0.0-r21 —
Wolfi rolling superset-6.1 6.1.0-r16 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI pillow < 13.0.0 13.0.0 GHSA-pchr-8j38-3x4p

Advisories 7

References