CVE-2026-113792

Published: Ott 21, 2026 Last Modified: Ott 21, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,0
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

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.

835

Loop with Unreachable Exit Condition ('Infinite Loop')

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Amplification
Applicable Platforms
All platforms may be affected
View CWE Details
https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078…
https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078094f6c816e69d4ed25a0
https://github.com/py-pdf/pypdf/pull/4188
https://github.com/py-pdf/pypdf/pull/4188
https://github.com/py-pdf/pypdf/releases/tag/6.20.1
https://github.com/py-pdf/pypdf/releases/tag/6.20.1
https://github.com/py-pdf/pypdf/security/advisories/GHSA-qf…
https://github.com/py-pdf/pypdf/security/advisories/GHSA-qfv9-64jg-mh7p