CVE-2026-55379
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| python-pillow | Pillow | < 12.3.0 | affected |
Weaknesses
- CWE-789: CWE-789: Memory Allocation with Excessive Size Value
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
Additional References
References
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-45hq-cxwh-f6vc
- https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d
- https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.