{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.1.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ad893eb1cc75b6d56f402d73a6d41bd48ba7ae11"
            },
            {
              "fixed": "f6af1d67a2630d77dcce39a92ac5599d08d7a5a1"
            }
          ],
          "repo": "https://github.com/liketrek/trek",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-f5vh-p2h5-x735"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54508.json"
  },
  "details": "TREK is a collaborative travel planner. Prior to 3.1.0, TREK validates only the initial URL before native redirect following in importGoogleList() and importNaverList() in server/src/services/placeService.ts and resolveGoogleMapsUrl() in server/src/services/mapsService.ts. The affected sinks call checkSsrf() from server/src/utils/ssrfGuard.ts and then use fetch() with redirect: 'follow' instead of the DNS-pinned safeFetch() path, so a public attacker-controlled URL can redirect the server to loopback, RFC 1918, or cloud metadata addresses without revalidation. An authenticated trip member can reach the list-import routes, and any authenticated user can reach /api/maps/resolve-url, allowing blind GET requests to internal services without response-body reflection. This issue is fixed in version 3.1.0.",
  "id": "CVE-2026-54508",
  "modified": "2026-08-23T03:42:39.757303822Z",
  "published": "2026-08-20T21:46:51.288Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/liketrek/TREK/releases/tag/v3.1.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54508.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/liketrek/TREK/security/advisories/GHSA-f5vh-p2h5-x735"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54508"
    },
    {
      "type": "FIX",
      "url": "https://github.com/liketrek/TREK/commit/ad893eb1cc75b6d56f402d73a6d41bd48ba7ae11"
    },
    {
      "type": "FIX",
      "url": "https://github.com/liketrek/TREK/pull/1185"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "TREK: Blind SSRF via unvalidated redirect-following in Google/Naver list import and Maps URL resolution"
}