Pillow is a Python imaging library. Prior to 13.0.0, SpiderImageFile.seek() in src/PIL/SpiderImagePlugin.py reparses a later SPIDER stack frame and replaces self._size without rerunning Image._decompression_bomb_check(). A tiny file can use a safe first frame to pass Image.open() and then declare very large dimensions in a later mode F frame. Loading that frame allocates approximately four bytes per attacker-declared pixel and can consume multiple gigabytes of memory. This issue is fixed in version 13.0.0.
References
Configurations
History
27 Oct 2026, 14:24
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
| References | () https://github.com/python-pillow/Pillow/commit/7cb0e02389d8aac2a60896a490f572db0b07b841 - Patch | |
| References | () https://github.com/python-pillow/Pillow/pull/10076 - 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-g842-9rc4-69pw - Vendor Advisory | |
| 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 : 2026-10-27 14:24
NVD link : CVE-2026-96637
Mitre link : CVE-2026-96637
CVE.ORG link : CVE-2026-96637
JSON object : View
Products Affected
python
- pillow