{"id":"CVE-2026-111681","title":"EFAK through 5.1.0 Privilege Escalation via /api/users REST API","summary":"EFAK through 5.1.0 contains a missing authorization vulnerability that allows authenticated low-privilege users to manage accounts because the /api/users endpoints lack administrator role checks. Attackers can send POST, PUT, or DELETE r…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-862"],"vendor":"smartloli","product":"EFAK","affected":["EFAK >= 5.0.0 <= 5.1.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T20:51:54.682916Z"},"published":"2026-10-16","updated":"2026-10-16","sourceUpdated":"2026-10-16T21:17:35.235Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111681","references":[{"url":"https://hackmd.io/@hieuPenguinnn/efak-missing-admin-gate-user-management-api"},{"url":"https://github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/security/config/WebSecurityConfig.java#L89-L93"},{"url":"https://github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/controller/UserController.java#L218-L302"},{"url":"https://github.com/smartloli/EFAK"},{"url":"https://www.vulncheck.com/advisories/efak-through-5.1.0-privilege-escalation-via-api-users-rest-api","label":"VulnCheck Advisory: EFAK through 5.1.0 Privilege Escalation via /api/users REST API"}],"tags":["cve.org"],"ingestedAt":"2026-10-16T18:43:08.662Z","slug":"CVE-2026-111681","body":"## Overview\n\nEFAK through 5.1.0 contains a missing authorization vulnerability that allows authenticated low-privilege users to manage accounts because the /api/users endpoints lack administrator role checks. Attackers can send POST, PUT, or DELETE requests to UserController to grant themselves ROLE_ADMIN, create administrators, or delete users, gaining control of managed Kafka clusters.\n\n## Affected\n\n- `EFAK >= 5.0.0 <= 5.1.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}