{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.5.3"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "e110926104cc93d3c87a9617ba7ab4ae70dbb216"
            }
          ],
          "repo": "https://github.com/webreaper/damselfly",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111626.json"
  },
  "details": "Webreaper Damselfly through 4.5.3 contains an authentication bypass vulnerability that allows unauthenticated attackers to access all /api/* routes because controller authorization attributes are commented out. Attackers can send PUT /api/users with Admin roles to create administrator accounts, or POST /api/users to reset any user's password, gaining full control.",
  "id": "CVE-2026-111626",
  "modified": "2026-10-17T10:30:49.990890484Z",
  "published": "2026-10-16T17:39:01.458Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111626.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Webreaper/Damselfly"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Webreaper/Damselfly/blob/4.5.3/Damselfly.Web.Server/Controllers/UserManagementController.cs#L8-L53"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Webreaper/Damselfly/blob/4.5.3/Damselfly.Web.Server/Program.cs#L238-L242"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Webreaper/Damselfly/issues/409"
    },
    {
      "type": "ADVISORY",
      "url": "https://hackmd.io/@hieuPenguinnn/damselfly-api-missing-authorization"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111626"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/webreaper-damselfly-through-4.5.3-missing-authentication-on-rest-api-controllers"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Webreaper Damselfly through 4.5.3 Missing Authentication on REST API Controllers"
}