CVE-2026-113793

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, removing an object from a crafted cyclic PDF tree, such as an outline item, 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-9m…
https://github.com/py-pdf/pypdf/security/advisories/GHSA-9mx8-4j7g-633p