CVE-2026-42309— Pillow: Heap buffer overflow with nested list coordinates
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I. Basic Information for CVE-2026-42309
Vulnerability Information
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Vulnerability Title
Pillow: Heap buffer overflow with nested list coordinates
Source: NVD (National Vulnerability Database)
Vulnerability Description
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, 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 issue has been patched in version 12.2.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| python-pillow | Pillow | >= 11.2.1, < 12.2.0 | - |
II. Public POCs for CVE-2026-42309
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Release 12.2.0 · python-pillow/Pillow · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-42309
Same Patch Batch · python-pillow · 2026-05-09 · 4 CVEs total
| CVE-2026-42308 | Pillow: Integer overflow when processing fonts | |
| CVE-2026-42311 | Pillow: OOB Write with Invalid PSD Tile Extents (Integer Overflow) | |
| CVE-2026-42310 | Pillow: PDF Parsing Trailer Infinite Loop (DoS) |
IV. Related Vulnerabilities
Same product: Pillow
- CVE-2026-42311
Pillow: OOB Write with Invalid PSD Tile Extents (Integer Ove - CVE-2026-42310
Pillow: PDF Parsing Trailer Infinite Loop (DoS) - CVE-2026-42308
Pillow: Integer overflow when processing fonts - CVE-2026-40192
Pillow is vulnerable to a FITS GZIP decompression bomb - CVE-2026-25990
Pillow has an out-of-bounds write when loading PSD images
Same vendor: python-pillow
- CVE-2026-42311
Pillow: OOB Write with Invalid PSD Tile Extents (Integer Ove - CVE-2026-42310
Pillow: PDF Parsing Trailer Infinite Loop (DoS) - CVE-2026-42308
Pillow: Integer overflow when processing fonts - CVE-2026-40192
Pillow is vulnerable to a FITS GZIP decompression bomb - CVE-2026-25990
Pillow has an out-of-bounds write when loading PSD images
Same weakness: CWE-122
- CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow - CVE-2026-8212
OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading - CVE-2026-8087
OSGeo gdal GDapi.c GDnentries heap-based overflow
V. Comments for CVE-2026-42309
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