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.
References
Configurations
History
27 Oct 2026, 14:25
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/python-pillow/Pillow/commit/e7794835e323ff2691d9b3a974cade1a44301b9a - Patch | |
| References | () https://github.com/python-pillow/Pillow/pull/10015 - Issue Tracking | |
| References | () https://github.com/python-pillow/Pillow/releases/tag/13.0.0 - Release Notes | |
| References | () https://github.com/python-pillow/Pillow/security/advisories/GHSA-24rc-8hj2-v98c - Vendor Advisory | |
| CPE | cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* | |
| First Time |
Python
Python pillow |
21 Oct 2026, 21:20
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-10-21 21:20
Updated : 2026-10-28 19:19
NVD link : CVE-2026-96638
Mitre link : CVE-2026-96638
CVE.ORG link : CVE-2026-96638
JSON object : View
Products Affected
python
- pillow
