CVE-2026-112901
NoneCVSS
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EPSS
0.3%
Published
Oct 19, 2026
CISA due date
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The record
Pillow is a Python imaging library. Prior to 13.0.0, Pillow's XBM header parser is vulnerable to regular-expression denial of service. In XbmImageFile._open, when an application calls Image.open() on a small crafted XBM file, XbmImagePlugin applies a backtracking expression to the attacker-controlled header before image dimensions are accepted, stalling a worker for minutes and denying service. This issue is fixed in version 13.0.0.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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