Description
An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.
References (2)
Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202107-33
Scores
CVSS v3
6.5
EPSS
0.0019
EPSS Percentile
39.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-1333
Status
published
Products (2)
pypi/pillow
5.1.0 - 8.1.1PyPI
python/pillow
< 8.1.1
Published
Mar 19, 2021
Tracked Since
Feb 18, 2026