Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually.
Scores
CVSS v3
7.5
EPSS
0.0005
EPSS Percentile
16.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-835
Status
published
Products (2)
pypdf_project/pypdf
< 6.7.2
pypi/pypdf
0 - 6.7.2PyPI
Published
Feb 25, 2026
Tracked Since
Feb 25, 2026