CVE-2026-111682 smartloli CVE debrief

Who should care

Defenders responsible for EFAK installations, especially those with low-privilege user accounts, should assess exposure and prioritize securing these systems to prevent unauthorized access to LLM provider API keys.

Why it matters

CVE-2026-111682 is a high-severity vulnerability in EFAK 5.0.0 through 5.1.0 that allows low-privilege users to access LLM provider API keys. Defenders should prioritize verifying and securing EFAK installations to prevent unauthorized access and potential incurred costs.

• Potential unauthorized access to LLM provider API keys.
• Possible incurred costs due to provider account access.
• Need for verification of EFAK installations and user account privileges.
• Priority for securing EFAK systems to prevent exploitation.

Technical summary

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. This vulnerability enables low-privilege users to access sensitive API keys, potentially leading to incurred costs and unauthorized access. Defenders should prioritize verifying and securing EFAK installations to prevent exploitation. The vulnerability is caused by a missing authorization issue in the /api/model-config REST API, allowing authenticated low-privilege users to read LLM provider API keys.

Defensive priority

Defenders should prioritize verifying and securing EFAK installations, especially those with low-privilege user accounts, to prevent unauthorized access to LLM provider API keys.

Recommended defensive actions

• Verify EFAK installations for version 5.0.0 through 5.1.0 and apply patches or updates if available.
• Restrict access to the /api/model-config REST API to authorized users only.
• Monitor for suspicious activity related to LLM provider API keys.
• Consider implementing additional security measures, such as API key rotation and revocation.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and source item provide details on the missing authorization vulnerability in EFAK 5.0.0 through 5.1.0, which allows authenticated low-privilege users to read LLM provider API keys. The source item provides additional information on the vulnerability, and defenders should verify EFAK installations and user account privileges to prevent exploitation. The CVE Program record and NIST NVD detail page offer further information on the vulnerability.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.