{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.30.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0052a5544e187a4d12f771838a8a23ca4afb61cd"
            },
            {
              "fixed": "2de79602fc3edacc782a083053f84d88382e7997"
            }
          ],
          "repo": "https://github.com/quenary/tugtainer",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-wgw2-c96g-p7h7"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-284"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55494.json"
  },
  "details": "Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.30.4, Tugtainer Agent allows unauthenticated access to Docker management APIs when AGENT_SECRET is not configured. The Agent uses request signatures to protect its API routes. However, in agent/auth.py, the signature verification function returns successfully if Config.AGENT_SECRET is empty. This causes protected Agent APIs to become accessible without authentication. This issue has been patched in version 1.30.4.",
  "id": "CVE-2026-55494",
  "modified": "2026-10-02T03:30:50.567892268Z",
  "published": "2026-09-30T16:58:27.259Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Quenary/tugtainer/releases/tag/v1.30.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55494.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Quenary/tugtainer/security/advisories/GHSA-wgw2-c96g-p7h7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55494"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Quenary/tugtainer/commit/0052a5544e187a4d12f771838a8a23ca4afb61cd"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Tugtainer: Unauthenticated access to Tugtainer Agent Docker management APIs when AGENT_SECRET is unset"
}