Pillow has a heap buffer overflow with nested list coordinates
Passing nested lists as coordinates to APIs that accept coordinates such as `ImagePath.Path`, `ImageDraw.ImageDraw.polygon` and `ImageDraw.ImageDraw.line` could cause a heap buffer overflow, as nested lists were recursively unpacked beyond the allocated buffer. Coordinate lists are now validated to contain exactly two numeric coordinates. This was introduced in Pillow 11.2.1.
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beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-42309US | medium5.5 | — | ||
Pillow is a Python imaging library. From version 11.2.1 to before version 12.2.0, passing nested lists as coordinates to APIs that accept coordinates such as ImagePath.Path, ImageD… | ||||
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Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/designcomputer/mysql_mcp_server/commit/a96549f4a4d65443fd6e9c7f2324fba9a5c80a82WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2026-2251.yamlWEB
- https://github.com/python-pillow/PillowPACKAGE
- https://github.com/python-pillow/Pillow/commit/cf6de8ca9b23e714aa5310e1c791eda66fc0b670WEB
- https://github.com/python-pillow/Pillow/releases/tag/12.2.0WEB
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-5xmw-vc9v-4wf2WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-42309ADVISORY
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