Bug 2555868 (CVE-2026-112397) - CVE-2026-112397 pillow: pillow: Denial of Service via out-of-bounds memory access on zero-width images
Summary: CVE-2026-112397 pillow: pillow: Denial of Service via out-of-bounds memory ac...
Keywords:
Status: NEW
Alias: CVE-2026-112397
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-19 21:22 UTC by OSIDB Bzimport
Modified: 2026-10-20 21:00 UTC (History)
59 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-19 21:22:29 UTC 
Pillow is a Python imaging library. Prior to 13.0.0, Pillow's ImageMorph.MorphOp.apply() can access memory before a row buffer for a zero-width image. PPM and PGM input can create an image with width zero, and the native morphology routine indexes outrow[width - 1] without rejecting that geometry. An attacker can supply such an image to an application that applies a morphology operation. This can crash the process. This issue is fixed in version 13.0.0.
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