CVE-2026-111682: EFAK 5.0.0 through 5.1.0 Missing Authorization via /api/model-config Exposes API Keys

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-16 · updated 2026-10-16
Weakness: CWE-862

Description

EFAK 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.

Affected products

smartloli EFAK: from 5.0.0 through 5.1.0

References

https://github.com/smartloli/EFAK
https://github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/controller/ModelConfigController.java#L34-L56
https://github.com/smartloli/EFAK/blob/v5.1.0/efak-web/src/main/java/org/kafka/eagle/web/security/config/WebSecurityConfig.java#L89-L93
https://hackmd.io/@hieuPenguinnn/efak-missing-admin-gate-user-management-api
https://www.vulncheck.com/advisories/efak-5.0.0-through-5.1.0-missing-authorization-via-api-model-config-exposes-api-keys
https://hackmd.io/@hieuPenguinnn/efak-missing-admin-gate-user-management-api

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