Vulnerability Details CVE-2026-49460
pypdf is a free and open-source pure-python PDF library. Prior to 6.12.2, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /FlateDecode filter with a PNG predictor. This vulnerability is fixed in 6.12.2.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 2.6%
CVSS Severity