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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-27024

pypdf has a possible infinite loop when processing TreeObject

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines. This vulnerability is fixed in 6.7.1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

py-pdf pypdf

  • < 6.7.1affected

References