CVE-2026-84309
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Sep 01, 2026
Vendor
unknown
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/_data_structures.py TreeObject.insert_child to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop. This issue is fixed in version 6.16.0.