CVE-2026-59358

{
  "etk_id": "ETK-2026-740",
  "cve_id": "CVE-2026-59358",
  "display_id": "CVE-2026-59358",
  "ghsa_id": "GHSA-hqp7-g6vh-8mf8",
  "euvd_id": "EUVD-2026-92988",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Improper authentication in Cloud Foundry UAA OAuth endpoint",
  "summary": "Cloud Foundry UAA can incorrectly treat a user access token as client authentication when issuing a client_credentials token. An authenticated attacker may gain the permissions assigned to that OAuth client if the same client supports both public user authorization and client_credentials grants.",
  "mitigation": "Separate public user-facing authorization flows and client_credentials grants onto different OAuth client IDs, and remove client_credentials from public clients where possible. Review and minimize authorities assigned to affected clients, then revoke and reissue exposed tokens or credentials as appropriate.",
  "vendor": "Cloud Foundry",
  "product": "UAA",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.7.0, <= 79.6.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "UAA",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 60.4.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "cf-deployment",
      "purl": null
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 7.6,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
  "epss_score": 0.0035,
  "epss_percentile": 0.2668,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 26.837647066666666,
  "t0_at": "2026-10-06T06:54:10.861000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-07T02:11:18+00:00",
      "days": 0.803554849537037,
      "is_lower_bound": false,
      "measured_at": "2026-10-06T06:54:10.861000+00:00",
      "url": "https://github.com/abraxas/CVE-2026-59358"
    },
    "trigger_signal": {
      "at": "2026-10-06T06:54:10.861000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-06T06:54:10.861000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-59358"
    }
  }
}