Description

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.

INFO

Published Date :

2025-07-24T19:39:17.709Z

Last Modified :

2025-07-25T13:17:33.295Z

Source :

Fluid Attacks
AFFECTED PRODUCTS

The following products are affected by CVE-2025-6998 vulnerability.

Vendors Products
Janeczku
  • Calibre-web
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-6998.

URL Resource
https://fluidattacks.com/advisories/megadeth cve-icon cve-icon
https://github.com/gelbphoenix/autocaliweb cve-icon cve-icon
https://github.com/janeczku/calibre-web cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability