Security Advisory
CVE-2026-59937
7.5
HIGH
Vulnerability Description
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.
Published Date
July 8, 2026
Official Source
NIST NVD Advisory