CVE-2026-40260 — Vulnerability intelligence

py-pdf — pypdf

Published: 2026-04-17T01:17:39.733

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. In versions prior to 6.10.0, manipulated XMP metadata entity declarations can exhaust RAM. An attacker who exploits this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the XMP metadata. This issue has been fixed in version 6.10.0.

Sources

• CVE-2026-40260
• Patch
• Issue Tracking, Patch
• Product, Release Notes
• Mitigation, Patch, Vendor Advisory