CVE-2026-28804 — Vulnerability intelligence

py-pdf — pypdf

Published: 2026-03-06T07:16:01.220

CVSS

6.9

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

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.

Sources

• CVE-2026-28804
• Patch
• Issue Tracking, Patch
• Product, Release Notes
• Patch, Vendor Advisory