CVE-2026-59204

HighCVSS 7.5/10Last modified Oct 24, 2026

Description

Pillow is a Python imaging library. From 8.2.0 through 12.2.0, src/libImaging/Jpeg2KDecode.c accumulates total_component_width across every tile in a JPEG2000 image instead of recomputing it per tile, allowing a crafted tiled JPEG2000 file to force substantially higher transient memory usage and trigger out-of-memory failures during decoding. This issue is fixed in version 12.3.0.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-789CWE-770

Affected software

VendorProductVersions
python-pillowPillow>= 8.2.0, < 12.3.0

References

Timeline

Published
Jul 14, 2026
Last modified
Oct 24, 2026
NVD status
Modified

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CVE-2026-59204: High severity, CVSS 7.5 | Vulnix