CVE search · CVE-2026-55379
CVE-2026-55379
high 7.5
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.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- security-advisories@github.com
- Weakness
- CWE-789
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | high 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
security-advisories@github.comSecondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- python · pillow
References
- https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rstRelease Notes
- https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77dPatch
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-45hq-cxwh-f6vcExploitVendor Advisory
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-45hq-cxwh-f6vcExploitVendor Advisory