CVE-2026-111681
EFAK through 5.1.0 Privilege Escalation via /api/users REST API
smartloli EFAK
CVSS
8.7HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.28%Chance of exploitation activity in the next 30 days, higher than 19% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- EFAKaffected: 5.0.0 through 5.1.0CVE List
References 5
- hackmd.io/@hieuPenguinnn/efak-missing-admin-gate-user-management-apiAdvisoryvia CVE List
- github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/security/config/WebSecurityConfig.java#L89-L93Advisoryvia CVE List
- vulncheck.com/advisories/efak-through-5.1.0-privilege-escalation-via-api-users-rest-apiAdvisoryvia CVE List
- github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/controller/UserController.java#L218-L302Referencevia CVE List
- github.com/smartloli/EFAKReferencevia CVE List