CVE-2026-42308— Pillow: Integer overflow when processing fonts
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I. Basic Information for CVE-2026-42308
Vulnerability Information
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Vulnerability Title
Pillow: Integer overflow when processing fonts
Source: NVD (National Vulnerability Database)
Vulnerability Description
Pillow is a Python imaging library. Prior to version 12.2.0, if a font advances for each glyph by an exceeding large amount, when Pillow keeps track of the current position, it may lead to an integer overflow. 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
整数溢出或超界折返
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| python-pillow | Pillow | < 12.2.0 | - |
II. Public POCs for CVE-2026-42308
| # | 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-2026-42308
Same Patch Batch · python-pillow · 2026-05-09 · 4 CVEs total
| CVE-2026-42311 | Pillow: OOB Write with Invalid PSD Tile Extents (Integer Overflow) | |
| CVE-2026-42310 | Pillow: PDF Parsing Trailer Infinite Loop (DoS) | |
| CVE-2026-42309 | Pillow: Heap buffer overflow with nested list coordinates |
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-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - 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-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - 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-190
- CVE-2026-7568
Signed integer overflow in metaphone() - CVE-2026-42311
Pillow: OOB Write with Invalid PSD Tile Extents (Integer Ove - CVE-2026-6664
PgBouncer integer overflow in PgBouncer network packet parsi - CVE-2026-42199
Grid: Integer Overflow in Grid::expand_rows Leads to Safe-AP - CVE-2026-42217
OpenEXR: Shift exponent overflow in `readVariableLengthInteg
V. Comments for CVE-2026-42308
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