High severity8.8NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-111681
CVE-2026-111681
Description
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 requests to UserController to grant themselves ROLE_ADMIN, create administrators, or delete users, gaining control of managed Kafka clusters.
Affected products
1Patches
Vulnerability mechanics
References
4- github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/controller/UserController.javanvd
- github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/security/config/WebSecurityConfig.javanvd
- hackmd.io/@hieuPenguinnn/efak-missing-admin-gate-user-management-apinvd
- www.vulncheck.com/advisories/efak-through-5.1.0-privilege-escalation-via-api-users-rest-apinvd
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