CVE-2026-119208
HIGH—CVSS v3
—CVSS v2
—
EPSS (exploit probability)
CWE-400CWE
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.3, pypdf can consume excessive time and memory when an application accesses the page count of a crafted encrypted PDF whose page tree declares a forged /Count value. Even after successful decryption, page-count retrieval trusts the unvalidated declared count instead of walking the page tree, allowing the attacker-controlled value to drive excessive work and memory use. This issue is fixed in version 6.21.3.
Affected routers (0)
No routers currently mapped to this CVE in our database.