CVEvulnerability

CVE-2026-113792

6.0 MEDIUM Published 2026-10-21 Modified 2026-10-23 Official page ↗

Status: Undergoing Analysis
Published: 2026-10-21
Last modified: 2026-10-23
Assigner: [email protected]
CVSS 4.0 ([email protected]): 6.0 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/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
Weaknesses: CWE-835

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, calling PdfWriter.find_outline_item on a crafted PDF with a cyclic outline hierarchy can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.

Weakness · CWE (1)

CWE-835 Loop with Unreachable Exit Condition weakness

References

https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078094f6c816e69d4ed25a0 github.com
https://github.com/py-pdf/pypdf/pull/4188 github.com
https://github.com/py-pdf/pypdf/releases/tag/6.20.1 github.com
https://github.com/py-pdf/pypdf/security/advisories/GHSA-qfv9-64jg-mh7p github.com

CVE-2026-113792

Description

Related

Weakness · CWE (1)

References