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CVE-2026-115572

pypdf: Possible long runtimes for repeated references to the same missing object PUBLISHED

Description (CNA)

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF that repeatedly references the same nonexistent indirect object, causing relevant file parts such as pages to trigger repeated full-file recovery loads and long runtimes when accessed. This issue is fixed in version 6.21.2.

Affected (CNA)

Vendor / productVersions
py-pdf / pypdfaffected < 6.21.2

CWE

CWE-400

References