CVE-2026-88805

{
  "etk_id": "ETK-2026-3201",
  "cve_id": "CVE-2026-88805",
  "display_id": "CVE-2026-88805",
  "ghsa_id": "GHSA-6vpq-mf48-9794",
  "euvd_id": "EUVD-2026-88339",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Session revocation failure in Rancher public API tokens",
  "summary": "Rancher versions before v2.15.2 can fail to revoke public API session tokens when a user logs out. An attacker who already possesses a victim's valid token may continue making authenticated API requests until the token expires; this requires an external-token authentication configuration and prior token exposure.",
  "mitigation": "Upgrade Rancher to v2.15.2. Until then, shorten session token TTL and idle timeouts, and remove affected users' active session tokens or disable their accounts when immediate revocation is needed.",
  "vendor": "go",
  "product": "go:github.com/rancher/rancher",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">=v2.15.0",
        "<v2.15.2"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "v2.15.2"
      ],
      "package_name": "github.com/rancher/rancher",
      "purl": "pkg:golang/github.com/rancher/rancher"
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 7.4,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 31.784373033333335,
  "t0_at": "2026-09-28T15:50:34.591000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-09-28T15:50:34.591000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-28T15:50:34.591000+00:00",
      "url": "https://github.com/rancher/rancher/security/advisories/GHSA-6vpq-mf48-9794"
    }
  }
}