Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package python-pillow-doc (opens in a new tab)
Threat Intelligence
This vulnerability is trending on Twitter; this may indicate a growing threat.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-PYTHONPILLOWDOC-17880996
- published7 Jul 2026
- disclosed6 Jul 2026
Introduced: 6 Jul 2026
CVE-2026-55379 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:7.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python-pillow-doc package and not the python-pillow-doc package as distributed by RHEL.
Pillow is a Python imaging library. Prior to 12.3.0, PIL/BdfFontFile.py bdf_char() read the BBX width and height field from a BDF font file and passed attacker-controlled dimensions to Image.new() without calling Image._decompression_bomb_check(), bypassing Pillow's documented decompression bomb protection and allowing excessive memory allocation. This issue is fixed in version 12.3.0.
References
- https://access.redhat.com/security/cve/CVE-2026-55379
- https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst
- https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-45hq-cxwh-f6vc