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CVE-2026-28804

MEDIUM CVSS: 5.3 Published: 2026-03-06 Modified: 2026-06-17

Description

pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.5, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /ASCIIHexDecode filter. This issue has been patched in version 6.7.5.

Affected Platforms

Pypdf Project Pypdf

Weakness Type

CWE-407

References