{"id":"CVE-2026-4052","aliases":["EUVD-2026-115721","GHSA-w63q-qmf7-22jw"],"status":"published","title":"Privilege Escalation via Token Endpoint in WSO2 API Manager (APIM 4.x/IS as Resident Key Manager)","description":"This issue only impacts deployments where WSO2 Identity Server is configured as a Resident Key Manager with database sharing. In such environments, a self-registered user may gain access to the System REST APIs of WSO2 API Manager by obtaining a token from the WSO2 Identity Server token endpoint.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0036,"percentile":0.30059,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-11-03T08:02:33Z","modified":"2026-11-03T16:16:57Z","products":[{"vendor":"wso2","product":"wso2 api control plane"},{"vendor":"wso2","product":"wso2 api manager"},{"vendor":"wso2","product":"wso2 identity server key manager connector (apim-km-wso2is)"}],"references":[{"url":"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5212/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4052"},{"url":"https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2026-5212"},{"url":"https://github.com/advisories/GHSA-w63q-qmf7-22jw"}],"sources":{"cve":[{"id":"CVE-2026-4052","title":"Privilege Escalation via Token Endpoint in WSO2 API Manager (APIM 4.x/IS as Resident Key Manager)","description":"This issue only impacts deployments where WSO2 Identity Server is configured as a Resident Key Manager with database sharing. In such environments, a self-registered user may gain access to the System REST APIs of WSO2 API Manager by obtaining a token from the WSO2 Identity Server token endpoint.","status":"published","published":"2026-11-03T08:02:33.735Z","modified":"2026-11-03T20:08:17.165Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-03T22:58:38.056681Z"}],"euvd":[{"id":"EUVD-2026-115721","description":"This issue only impacts deployments where WSO2 Identity Server is configured as a Resident Key Manager with database sharing. In such environments, a self-registered user may gain access to the System REST APIs of WSO2 API Manager by obtaining a token from the WSO2 Identity Server token endpoint.","status":"published","published":"2026-11-03T08:02:33Z","modified":"2026-11-03T20:08:17Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T21:20:12.603156Z"}],"ghsa":[{"id":"GHSA-w63q-qmf7-22jw","title":"This issue only impacts deployments where WSO2 Identity Server is configured as a Resident Key...","description":"This issue only impacts deployments where WSO2 Identity Server is configured as a Resident Key Manager with database sharing. In such environments, a self-registered user may gain access to the System REST APIs of WSO2 API Manager by obtaining a token from the WSO2 Identity Server token endpoint.","status":"published","published":"2026-11-03T09:31:43Z","modified":"2026-11-03T09:31:48Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-03T09:50:56.938855Z"}],"nvd":[{"id":"CVE-2026-4052","description":"This issue only impacts deployments where WSO2 Identity Server is configured as a Resident Key Manager with database sharing. In such environments, a self-registered user may gain access to the System REST APIs of WSO2 API Manager by obtaining a token from the WSO2 Identity Server token endpoint.","status":"published","published":"2026-11-03T08:17:15.53Z","modified":"2026-11-03T20:18:14.127Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-03T22:58:51.822037Z"}]}}