CVE-2026-113794

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 6.20.0, an attacker can craft an incomplete PDF that ends inside a standard cross-reference table, causing pypdf to mishandle the unexpected end of file and enter an infinite loop. This issue is fixed in version 6.20.0.

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/37e1cd681744bac38b15…
https://github.com/py-pdf/pypdf/commit/37e1cd681744bac38b159f7e1c614eee8d639c58
https://github.com/py-pdf/pypdf/issues/4169
https://github.com/py-pdf/pypdf/issues/4169
https://github.com/py-pdf/pypdf/pull/4170
https://github.com/py-pdf/pypdf/pull/4170
https://github.com/py-pdf/pypdf/releases/tag/6.20.0
https://github.com/py-pdf/pypdf/releases/tag/6.20.0
https://github.com/py-pdf/pypdf/security/advisories/GHSA-39…
https://github.com/py-pdf/pypdf/security/advisories/GHSA-39mj-jf6j-2qj3