Out-of-bounds Write Affecting pillow package, versions [,13.0.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-PILLOW-21277786
- published20 Oct 2026
- disclosed19 Oct 2026
- creditJoshua Rogers
Introduced: 19 Oct 2026
NewCVE-2026-112397 (opens in a new tab)How to fix?
Upgrade pillow to version 13.0.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write via the apply function in src/_imagingmorph.c when a MorphOp operation is applied to an image with zero width or zero height. The missing bounds check allows an attacker to trigger a crash by supplying an empty image to the ImageMorph morphological operation.