{"id":"CVE-2026-111682","kind":"vulnerability","aliases":["CVE-2026-111682"],"related":[],"title":"EFAK: low-privilege users can read LLM provider API keys","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.","summary":"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.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["efak","kafka-monitoring","llm-provider-keys","other"],"not_affected_if":["admin-only-accounts","no-llm-provider-configured"],"how_to_check":"- Check the installed EFAK version against `5.0.0` through `5.1.0`\n- Call `/api/model-config/page` as a non-admin user and see whether unmasked keys are returned\n- unknown for anything else, the sources do not say","fix":"- Upgrade EFAK past `5.1.0` (fixed version unknown from sources)\n- Rotate any LLM provider API keys stored in EFAK after upgrading, since they may have been read\n- unknown for further steps","status":"open","published_at":"2026-10-16T18:17:51+00:00","first_seen_at":"2026-10-23T21:57:13+00:00","triaged_at":"2026-10-25T03:36:33+00:00","updated_at":"2026-10-25T03:36:33+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-25T03:36:33Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade EFAK past `5.1.0` (fixed version unknown from sources)\n- Rotate any LLM provider API keys stored in EFAK after upgrading, since they may have been read\n- unknown for further steps","reach":"network","title":"EFAK: low-privilege users can read LLM provider API keys","impact":"high","summary":"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.","category":"other","nicknames":[],"who_cares":["efak","kafka-monitoring","llm-provider-keys"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker reads LLM provider API keys and runs costs on the account","analyst_note":"Find the fixed EFAK version and confirm whether the /api/model-config endpoints return unmasked keys in the default configuration; check the NVD entry for the vendor advisory link.","how_to_check":"- Check the installed EFAK version against `5.0.0` through `5.1.0`\n- Call `/api/model-config/page` as a non-admin user and see whether unmasked keys are returned\n- unknown for anything else, the sources do not say","needs_analyst":true,"not_affected_if":["no-llm-provider-configured","admin-only-accounts"],"who_is_affected":"EFAK deployments on versions 5.0.0 through 5.1.0 that store LLM provider keys in the model config are exposed to any user with a ROLE_USER account. Installs with no LLM provider configured, or with only admin accounts, are less exposed. The sources do not say whether managed or hosted installs differ.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.00066,"input_tokens":3352,"output_tokens":650,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-111682':14A,17A '-2026':13A,16A '/api/model-config':36B,89C,102C '/api/model-config/page':100C '5.0.0':27B,66C '5.1.0':29B,68C 'access':111C 'account':45B,60B,97C,110C 'allow':75C 'api':10A,51B,85C,91C 'attack':56B,92C 'authent':76C 'author':32B,72C 'check':33B 'contain':69C 'cost':64B,114C 'cve':12A,15A 'efak':1A,18B,26B,65C 'enabl':108C 'endpoint':38B 'id':103C 'incur':113C 'kafka':20B 'kafka-monitor':19B 'key':11A,25B,52B,86C,107C 'lack':30B 'let':54B 'llm':8A,23B,49B,83C 'llm-provider-key':22B 'log':41B 'logged-in':40B 'low':3A,78C 'low-privileg':2A,77C 'miss':71C 'monitor':21B 'privileg':4A,79C 'provid':9A,24B,50B,59B,84C,109C 'queri':99C 'read':7A,82C 'rest':37B,90C 'retriev':47B,105C 'role':43B,95C 'run':62B 'unmask':48B,106C 'use':57B 'user':5A,44B,80C,96C 'vulner':73C","nicknames":[],"mitigations":[],"who_affected":"EFAK deployments on versions 5.0.0 through 5.1.0 that store LLM provider keys in the model config are exposed to any user with a ROLE_USER account. Installs with no LLM provider configured, or with only admin accounts, are less exposed. The sources do not say whether managed or hosted installs differ.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T18:17:51+00:00","kev":null,"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/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","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-111682","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111682","severity":null,"published_at":"2026-10-16T18:17:51+00:00","modified_at":"2026-10-16T20:17:22+00:00","first_seen_at":"2026-10-23T21:57:13+00:00","fetched_at":"2026-10-23T22:28:55+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}