CVE-2025-6998 – calibreweb

Package

Manager: pip
Name: calibreweb
Vulnerable Version: >=0 <=0.6.24

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:R

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00041 pctl0.11378

Details

Calibre Web and Autocaliweb have a ReDoS vulnerability ReDoS in strip_whitespaces() function in cps/string_helper.py in Calibre Web and Autocaliweb allows unauthenticated remote attackers to cause denial of service via specially crafted username parameter that triggers catastrophic backtracking during login. This issue affects Calibre Web: 0.6.24 (Nicolette); Autocaliweb: from 0.7.0 before 0.7.1.

Metadata

Created: 2025-07-24T21:30:39Z
Modified: 2025-07-28T14:53:43Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-2g7m-ph9x-7q7m/GHSA-2g7m-ph9x-7q7m.json
CWE IDs: ["CWE-1333"]
Alternative ID: GHSA-2g7m-ph9x-7q7m
Finding: F211
Auto approve: 1