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Pillow: Heap out-of-bounds write `Image.paste()` / `Image.crop()` via signed coordinate overflow
Pillow: Heap out-of-bounds write `Image.paste()` / `Image.crop()` via signed coordinate overflow
Affected packages
- pillow— before 12.3.0
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-6r8x-57c9-28j4
- https://nvd.nist.gov/vuln/detail/CVE-2026-59199
- https://github.com/python-pillow/Pillow/pull/9703
- https://github.com/python-pillow/Pillow/commit/ceefc348eb3c3844c7f9796ef2cc3a7dd5fbba7b
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2026-3451.yaml
- https://github.com/python-pillow/Pillow
- https://github.com/python-pillow/Pillow/releases/tag/12.3.0
Structured record: https://osv.dev/vulnerability/GHSA-6r8x-57c9-28j4
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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