Integer Overflow or Wraparound Affecting python3-pillow package, versions <0:5.1.1-23.el8_10


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.44% (36th percentile)

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  • Snyk IDSNYK-ORACLE8-PYTHON3PILLOW-18487853
  • published31 Jul 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

NewCVE-2026-59197  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Oracle:8 python3-pillow to version 0:5.1.1-23.el8_10 or higher.
This issue was patched in ELSA-2026-48021.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-pillow package and not the python3-pillow package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

Pillow is a Python imaging library. Prior to 12.3.0, Pillow's public rank-filter API can trigger a native heap out-of-bounds write when given a very large odd filter size because ImageFilter.RankFilter.filter() calls image.expand(size // 2, size // 2) before rank-filter size validation and ImagingExpand() computes output dimensions with unchecked signed int arithmetic. This issue is fixed in version 12.3.0.

CVSS Base Scores

version 3.1