6.5Media
CVE-2026-96638Pillow: BMP RLE decoder memory-amplification DoS via unbounded delta escape / absolute mode
Descripción
Pillow is a Python imaging library. From 9.1.0 until 13.0.0, BmpRleDecoder.decode() in src/PIL/BmpImagePlugin.py permits crafted RLE BMP delta escapes and absolute-mode runs to append beyond the remaining dest_length without a per-branch cap. A delta can add roughly 255 image rows in one iteration, so a kilobyte-sized file with a large but permitted width can expand the data bytearray to hundreds of megabytes or more, causing memory-exhaustion denial of service. This issue is fixed in version 13.0.0.
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| python | pillow | 9.1.0 – < 13.0.0 | |
| python-pillow | Pillow | >= 9.1.0, < 13.0.0 |
Referencias y parches
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-24rc-8hj2-v98c Vendor Advisory
- https://github.com/python-pillow/Pillow/pull/10015 Issue Tracking
- https://github.com/python-pillow/Pillow/commit/e7794835e323ff2691d9b3a974cade1a44301b9a Patch
- https://github.com/python-pillow/Pillow/releases/tag/13.0.0 Release Notes
Coincidencias CPE (NVD) (1)
cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*≥ 9.1.0 < 13.0.0