CVE-2026-111682
HIGH 7.1EFAK 5.0.0 through 5.1.0 contains a missing authorization vulnerability that allows authenticated low-privilege users to read LLM provider API keys through the /api/model-config REST API. Attackers with any ROLE_USER account can query /api/model-config/page or /api/model-config/{id} to retrieve unmasked keys, enabling provider account access and incurred costs.
Severe if exploited (CVSS 7.1), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.4%chance of exploitation in 30 days · 32nd percentile
Impact if exploited
7.1CVSS 4.0 · HIGH
- ConfidentialityHigh
- IntegrityNone
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-862: Missing Authorization
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References and research data (JSON)
All CVSS metrics
- HIGH 7.1 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - MEDIUM 6.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - HIGH 7.1 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - MEDIUM 6.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
Exploit-tagged references (not proof of a PoC)
- https://hackmd.io/@hieuPenguinnn/efak-missing-admin-gate-user-management-api CVE record · VulnCheck · Updated 2026-10-16T17:39:40.095Z
CVE record · CISA-ADP · Updated 2026-10-16T19:04:04.560Z
NVD · CVE-2026-111682 · Updated 2026-10-16T20:17:22.140
Advisories
- https://www.vulncheck.com/advisories/efak-5.0.0-through-5.1.0-missing-authorization-via-api-model-config-exposes-api-keys CVE record · VulnCheck · Updated 2026-10-16T17:39:40.095Z
NVD · CVE-2026-111682 · Updated 2026-10-16T20:17:22.140 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-102973 EUVD · EUVD-2026-102973
Technical & other
- https://github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/controller/ModelConfigController.java#L34-L56 CVE record · VulnCheck · Updated 2026-10-16T17:39:40.095Z
NVD · CVE-2026-111682 · Updated 2026-10-16T20:17:22.140 - https://github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/security/config/WebSecurityConfig.java#L89-L93 CVE record · VulnCheck · Updated 2026-10-16T17:39:40.095Z
NVD · CVE-2026-111682 · Updated 2026-10-16T20:17:22.140 - https://github.com/smartloli/EFAK CVE record · VulnCheck · Updated 2026-10-16T17:39:40.095Z
NVD · CVE-2026-111682 · Updated 2026-10-16T20:17:22.140