{"id":"GHSA-2g7m-ph9x-7q7m","summary":"Calibre Web and Autocaliweb have a ReDoS vulnerability","details":"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.","aliases":["CVE-2025-6998","PYSEC-2026-1228"],"modified":"2026-07-07T17:56:44.214741721Z","published":"2025-07-24T21:30:39Z","database_specific":{"github_reviewed_at":"2025-07-28T14:53:43Z","nvd_published_at":"2025-07-24T20:15:27Z","cwe_ids":["CWE-1333"],"severity":"HIGH","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6998"},{"type":"WEB","url":"https://fluidattacks.com/advisories/megadeth"},{"type":"WEB","url":"https://github.com/gelbphoenix/autocaliweb"},{"type":"PACKAGE","url":"https://github.com/janeczku/calibre-web"}],"affected":[{"package":{"name":"calibreweb","ecosystem":"PyPI","purl":"pkg:pypi/calibreweb"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.6.24"}]}],"versions":["0.6.12","0.6.13","0.6.14","0.6.15","0.6.16","0.6.17","0.6.18","0.6.19","0.6.20","0.6.21","0.6.22","0.6.23","0.6.24"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-2g7m-ph9x-7q7m/GHSA-2g7m-ph9x-7q7m.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}