CVE-2026-28804

pypdf <6.7.5 - DoS

Title source: llm

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.

Scores

EPSS 0.0004
EPSS Percentile 12.7%

Classification

CWE
CWE-407
Status draft

Affected Products (1)

pypi/pypdf < 6.7.5PyPI

Timeline

Published Mar 06, 2026
Tracked Since Mar 06, 2026