CVE-2026-59937 — Vulnerability intelligence

py-pdf — pypdf

Published: 2026-07-08T17:25:34.026Z

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 6.14.0, an attacker can craft a PDF with repeated malformed cross-reference streams that cause pypdf to spend long runtimes recovering broken cross-reference table entries. This issue is fixed in version 6.14.0.

Sources

• CVE-2026-59937
• Patch
• Issue Tracking, Patch
• Product, Release Notes
• Patch, Vendor Advisory
• CVE-2026-59937