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CVE-2026-112892 Pillow is a Python imaging library

Description

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.

Affected products and versions

Product Affected versions Fixed in
Pillow 4.1 4.1.0 → < 13.0.0 13.0.0

References

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