Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow can exhaust resources while parsing an existing PDF during an append operation. PdfParser follows page-tree child references without cycle or duplication tracking and follows previous-trailer chains with only an exact repeated-offset guard, so deep or cyclic page trees and long chains of unique trailer offsets can exhaust the Python stack. Repeated non-cyclic /Kids references can also cause super-linear CPU and memory use. An attacker can supply such a PDF to an application that calls Image.save with PDF append enabled. This can raise an uncaught RecursionError or consume excessive CPU and memory before output is written, causing denial of service. This issue is fixed in version 13.0.0.
References
| Link | Resource |
|---|---|
| https://github.com/python-pillow/Pillow/commit/e2ae7eacad6de68c37eb28b633a97bebacf2c5bf | Patch |
| https://github.com/python-pillow/Pillow/releases/tag/13.0.0 | Release Notes |
| https://github.com/python-pillow/Pillow/security/advisories/GHSA-p4wg-p73j-c528 | Exploit Vendor Advisory |
Configurations
History
27 Oct 2026, 14:56
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Python
Python pillow |
|
| CPE | cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| References | () https://github.com/python-pillow/Pillow/commit/e2ae7eacad6de68c37eb28b633a97bebacf2c5bf - Patch | |
| References | () https://github.com/python-pillow/Pillow/releases/tag/13.0.0 - Release Notes | |
| References | () https://github.com/python-pillow/Pillow/security/advisories/GHSA-p4wg-p73j-c528 - Exploit, Vendor Advisory |
19 Oct 2026, 22:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-10-19 22:17
Updated : 2026-10-27 14:56
NVD link : CVE-2026-112895
Mitre link : CVE-2026-112895
CVE.ORG link : CVE-2026-112895
JSON object : View
Products Affected
python
- pillow
CWE
CWE-674
Uncontrolled Recursion