{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0.7.0"
              },
              {
                "fixed": "0.7.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "35dece44cbf4ca715be07f4d62b95f0391491ac0"
            },
            {
              "fixed": "84477b55caff47e54d93384015fa694b6eb9b5be"
            }
          ],
          "repo": "https://github.com/gelbphoenix/autocaliweb",
          "type": "GIT"
        }
      ]
    }
  ],
  "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.",
  "id": "CVE-2025-6998",
  "modified": "2026-04-01T23:10:29.340995108Z",
  "published": "2025-07-24T20:15:27.013Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://fluidattacks.com/advisories/megadeth"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/gelbphoenix/autocaliweb"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/janeczku/calibre-web"
    }
  ],
  "severity": [
    {
      "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}