Out-of-bounds Read Affecting py3-pillow package, versions <13.0.0-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.48% (41st percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PY3PILLOW-21663654
  • published24 Oct 2026
  • disclosed19 Oct 2026

Introduced: 19 Oct 2026

NewCVE-2026-112896  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Chainguard py3-pillow to version 13.0.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3-pillow package and not the py3-pillow package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1