---
id: "CVE-2026-111682"
kind: "vulnerability"
aliases: ["CVE-2026-111682"]
title: "EFAK: low-privilege users can read LLM provider API keys"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["efak", "kafka-monitoring", "llm-provider-keys", "other"]
not_affected_if: ["admin-only-accounts", "no-llm-provider-configured"]
published_at: "2026-10-16T18:17:51+00:00"
first_seen_at: "2026-10-23T21:57:13+00:00"
updated_at: "2026-10-25T03:36:33+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111682", "first_seen_at": "2026-10-23T21:57:13+00:00"}]
---

# EFAK: low-privilege users can read LLM provider API keys

EFAK 5.0.0 through 5.1.0 lacks an authorization check on its /api/model-config REST endpoints. Any logged-in ROLE_USER account can retrieve unmasked LLM provider API keys, which lets the attacker use the provider account and run up costs.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed EFAK version against `5.0.0` through `5.1.0`
- Call `/api/model-config/page` as a non-admin user and see whether unmasked keys are returned
- unknown for anything else, the sources do not say

## Fix

- Upgrade EFAK past `5.1.0` (fixed version unknown from sources)
- Rotate any LLM provider API keys stored in EFAK after upgrading, since they may have been read
- unknown for further steps

## Timeline

- 2026-10-23T21:57:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111682

## From the sources

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_