CVE-2026-4052

{
  "etk_id": "ETK-2026-3350",
  "cve_id": "CVE-2026-4052",
  "display_id": "CVE-2026-4052",
  "ghsa_id": "GHSA-w63q-qmf7-22jw",
  "euvd_id": "EUVD-2026-115721",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authorization bypass in WSO2 API Manager System REST APIs",
  "summary": "WSO2 API Manager deployments using WSO2 Identity Server as a Resident Key Manager with a shared database are affected. A self-registered user may obtain a token from Identity Server and use it to access API Manager System REST APIs; this requires the Resident Key Manager and database-sharing configuration.",
  "mitigation": "Upgrade org.wso2.km.ext.wso2is:wso2is.key.manager.core to version 1.8.8 or later. Until upgraded, avoid using WSO2 Identity Server as a Resident Key Manager with database sharing, or restrict exposure to the affected System REST APIs.",
  "vendor": "WSO2",
  "product": "WSO2 API Manager",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "4.1.0",
        "4.2.0",
        "4.3.0",
        "4.4.0",
        "4.5.0",
        "4.6.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "WSO2 API Manager",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "4.5.0",
        "4.6.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "WSO2 API Control Plane",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 1.8.8"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.8.8"
      ],
      "package_name": "org.wso2.km.ext.wso2is:wso2is.key.manager.core",
      "purl": null
    }
  ],
  "cwes": [
    862
  ],
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 91.97009908333334,
  "t0_at": "2026-11-03T08:02:33.735000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-03T08:02:33.735000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-03T08:02:33.735000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-4052"
    }
  }
}