{
  "canonical_id": "traefik--CVE-2025-66491",
  "system_id": "traefik",
  "display_name": "Traefik",
  "category": "servers",
  "advisory_mode": "server",
  "title": "Traefik Inverted TLS Verification Logic in ingress-nginx Provider in github.com/traefik/traefik",
  "summary": "Traefik Inverted TLS Verification Logic in ingress-nginx Provider in github.com/traefik/traefik",
  "published_at": "2025-12-15T19:37:35Z",
  "updated_at": "2026-03-03T04:57:46.762301Z",
  "severity": "unknown",
  "cvss_score": null,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://github.com/traefik/traefik/security/advisories/GHSA-7vww-mvcr-x6vj",
  "secondary_source_urls": [
    "https://nvd.nist.gov/vuln/detail/CVE-2025-66491",
    "https://github.com/traefik/traefik/commit/14a1aedf5704673d875d210d7bacf103a43c77e4",
    "https://github.com/traefik/traefik/releases/tag/v3.6.3"
  ],
  "aliases": [
    "CVE-2025-66491",
    "GHSA-7vww-mvcr-x6vj",
    "GO-2025-4205"
  ],
  "cve_ids": [
    "CVE-2025-66491"
  ],
  "ghsa_ids": [
    "GHSA-7vww-mvcr-x6vj"
  ],
  "osv_ids": [
    "GO-2025-4205"
  ],
  "affected_versions": [
    "introduced=0",
    "introduced=3.5.0, fixed<3.6.3"
  ],
  "fixed_versions": [
    "3.6.3"
  ],
  "package_name": "github.com/traefik/traefik/v3",
  "render_markdown": false,
  "case_path": null,
  "secure_code_topics": [
    "proxy-trust-boundary",
    "request-smuggling-boundary"
  ],
  "status": "generated",
  "triage_reasons": [],
  "verification_status": "triage-manual",
  "verification_mode": "synthetic",
  "last_verified_at": null,
  "last_run_id": null,
  "evidence_bundle": null,
  "historical_status": null,
  "latest_status": null,
  "browser_evidence": {
    "required": false,
    "present": false,
    "refs": []
  },
  "repro_profile_id": "proxy-boundary-generic",
  "artifact_mode": "synthetic",
  "blocked_reason": null,
  "metadata": {
    "source_names": [
      "OSV Traefik"
    ],
    "source_kinds": [
      "osv-batch"
    ],
    "candidate_count": 1
  }
}