{
  "cveId": "CVE-2026-93854",
  "url": "https://patchblox.com/security/cve/CVE-2026-93854",
  "summary": "CVE-2026-93854 is fixed in blazar on 1 platform by DEBIAN-CVE-2026-93854 (version 18.0.0~rc1-3), released September 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "blazar: In OpenStack Blazar before 17.0.1, the V2 lease API does not enforce object-level authorization on its update and del...",
  "description": "In OpenStack Blazar before 17.0.1, the V2 lease API does not enforce object-level authorization on its update and delete operations (PUT /v2/leases/{lease_id} and DELETE /v2/leases/{lease_id}). The policy authorize() wrapper attempts to load the target lease to build the authorization target from its owner, but it looks up the lease under the keyword \u0022lease_id\u0022 whereas the controller methods name the parameter \u0022id\u0022 (and the wsme_pecan.wsexpose wrapper delivers it positionally). The lookup returns None, and thus authorization falls back to the requesting user\u0027s own project_id/user_id instead of the target lease owner. Any authenticated user who knows a lease ID can therefore modify or delete leases belonging to other users and projects, bypassing the intended ownership check.",
  "published": "2026-09-18T19:17:25Z",
  "severity": "",
  "epss": 0.00406,
  "epssPercentile": 0.35102,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "blazar",
      "release": "Debian 14",
      "fixedVersion": "18.0.0~rc1-3",
      "fix": "DEBIAN-CVE-2026-93854",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-93854",
      "released": "2026-09-29T20:26:41Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}