CVEvulnerability
CVE-2026-59938
6.9 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-08
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 6.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-789
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.0, an attacker can craft a PDF with declared image size values that are much too large compared to the actual data, causing large memory usage in pypdf image parsing. This issue is fixed in version 6.14.0.
Affected configurations
• pypdf project pypdf (< 6.14.0)
Related
Weakness · CWE (1)
- CWE-789 Memory Allocation with Excessive Size Value weakness
References
- https://github.com/py-pdf/pypdf/commit/c64583be16b8e8763d8777075f8ecbf382014b7a Patch
- https://github.com/py-pdf/pypdf/pull/3888 Issue Tracking, Patch
- https://github.com/py-pdf/pypdf/releases/tag/6.14.0 Product, Release Notes
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-5qjq-93h5-hrgp Patch, Vendor Advisory