CVE-2026-27025 — Vulnerability intelligence

py-pdf — pypdf

Published: 2026-02-20T22:16:28.850

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 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires parsing the /ToUnicode entry of a font with unusually large values, for example during text extraction. This vulnerability is fixed in 6.7.1.

Sources

• CVE-2026-27025
• Patch
• Issue Tracking, Patch
• Product, Release Notes
• Patch, Vendor Advisory