Read the docs
TI-2026-75467 Aliases CVE-2026-111681GHSA-64mr-r26w-689m

Missing authorization in EFAK lets users gain administrator rights

Priority LOW 39CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

EFAK from 5.0.0 through 5.1.0 has a missing authorization flaw (CWE-862) in the /api/users endpoints, which lack administrator role checks. An authenticated user with low privileges can send POST, PUT, or DELETE requests to grant themselves ROLE_ADMIN, create administrators, or delete users, gaining control of managed Kafka clusters. The CVSS 4.0 vector rates the attack as network-based and low complexity.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00283 20th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
smartloliEFAK5.0.0 – 5.1.0—No fix listedCNA
  • EFAK Vendorsmartloli Affected 5.0.0 – 5.1.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for EFAK.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111681
  2. 2026-10-16 Alias added: GHSA-64mr-r26w-689m
  3. 2026-10-18 CISA SSVC decision points changed
  4. 2026-10-18 Priority changed: MEDIUM → LOW

References

Advisory 1

Other 3

  • TI-2026-75468 EFAK Missing Authorization in /api/model-config Exposes LLM API Keys CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences