CVE-2026-112892

UNKNOWN 0.0

Pillow: MSP RLE decoder expands a tiny file into unbounded memory

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Pillow is a Python imaging library. From 4.1.0 until 13.0.0, Pillow's MSP RLE decoder can expand a small file into an unbounded in-memory buffer. The decoder writes run-length output to BytesIO without limiting expansion to the declared image size. An attacker can supply a crafted MSP image to an application that loads its pixels. This can exhaust memory and deny service even when the declared pixel count passes the decompression-bomb check. This issue is fixed in version 13.0.0.

CWE	CWE-409
Vendor	python-pillow
Product	pillow
Published	Oct 19, 2026

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Affected Versions

python-pillow / Pillow

>= 4.1.0, < 13.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/python-pillow/Pillow/security/advisories/GHSA-gg2r-wvfm-q9rx github.com: https://github.com/python-pillow/Pillow/commit/5dcb630b9798efd91929cb873d677aeee6ed0bb3 github.com: https://github.com/python-pillow/Pillow/releases/tag/13.0.0