{"id":"CVE-2026-119337","kind":"vulnerability","aliases":["CVE-2026-119337"],"related":[],"title":"RAGFlow: authenticated users can run other users' private agents and read output","description":"RAGFlow is an open-source RAG (Retrieval-Augmented Generation) engine. From 0.25.2 until 0.27.3, POST /api/v1/agents/chat/completions invokes completion_openai and returns through the openai-compatible branch before UserCanvasService.accessible() checks whether the caller may access the requested agent. An authenticated user who knows another user's private agent UUID can execute that Only me workflow and read its output across the user or tenant boundary; configured tools may also cause side effects, but stronger impacts were not demonstrated. This issue is fixed in version 0.27.3.","summary":"RAGFlow, an open-source retrieval-augmented generation engine, checks agent access only after the chat completions endpoint has already started running the agent. A logged-in user who knows another user's private agent ID can run that workflow and read its output across account or tenant boundaries.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["agents","ai-tooling","rag","ragflow","self-hosted"],"not_affected_if":["single-user-instance","version-0.27.3-or-later"],"how_to_check":"- Confirm the installed RAGFlow version with the deployment's image tag or release file; affected versions are `0.25.2` through `0.27.3`\n- Check whether multiple users or tenants share the same RAGFlow instance, since that is where the cross-user read matters","fix":"- RAGFlow: move to `0.27.3`","status":"open","published_at":"2026-10-30T20:17:08+00:00","first_seen_at":"2026-10-30T20:25:38+00:00","triaged_at":"2026-10-30T20:26:35+00:00","updated_at":"2026-10-30T20:26:35+00:00","category":"ai-tooling","confidence":0.8,"triage":{"at":"2026-10-30T20:26:35Z","model":"claude-haiku-5-5","output":{"fix":"- RAGFlow: move to `0.27.3`","reach":"network","title":"RAGFlow: authenticated users can run other users' private agents and read output","impact":"medium","summary":"RAGFlow, an open-source retrieval-augmented generation engine, checks agent access only after the chat completions endpoint has already started running the agent. A logged-in user who knows another user's private agent ID can run that workflow and read its output across account or tenant boundaries.","audience":"businesses","category":"ai-tooling","nicknames":[],"who_cares":["ragflow","self-hosted","rag","agents"],"confidence":0.8,"fix_status":"available","needs_auth":"yes","worst_case":"Another user's private agent runs and its output is readable","analyst_note":"","how_to_check":"- Confirm the installed RAGFlow version with the deployment's image tag or release file; affected versions are `0.25.2` through `0.27.3`\n- Check whether multiple users or tenants share the same RAGFlow instance, since that is where the cross-user read matters","plain_action":"","needs_analyst":false,"not_affected_if":["single-user-instance","version-0.27.3-or-later"],"who_is_affected":"Self-hosted RAGFlow deployments on versions from 0.25.2 up to but not including 0.27.3 are exposed. The risk applies when several users or tenants share the instance and agents are set to private; a single-user deployment has less exposure to the cross-user read.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00069,"input_tokens":4217,"output_tokens":536,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-119337':15A,18A '-2026':14A,17A '/api/v1/agents/chat/completions':96C '0.25.2':92C '0.27.3':94C,165C 'access':40B,115C 'account':75B 'across':74B,140C 'agent':9A,19B,39B,52B,64B,118C,128C 'ai':21B 'ai-tool':20B 'alreadi':48B 'also':149C 'anoth':60B,124C 'augment':35B,88C 'authent':2A,120C 'boundari':78B,145C 'branch':107C 'caller':113C 'caus':150C 'chat':44B 'check':38B,110C 'compat':106C 'complet':45B,98C 'configur':146C 'cve':13A,16A 'demonstr':158C 'effect':152C 'endpoint':46B 'engin':37B,90C 'execut':131C 'fix':162C 'generat':36B,89C 'host':27B 'id':65B 'impact':155C 'invok':97C 'issu':160C 'know':59B,123C 'log':55B 'logged-in':54B 'may':114C,148C 'open':31B,83C 'open-sourc':30B,82C 'openai':99C,105C 'openai-compat':104C 'output':12A,73B,139C 'post':95C 'privat':8A,63B,127C 'rag':23B,85C 'ragflow':1A,24B,28B,79C 'read':11A,71B,137C 'request':117C 'retriev':34B,87C 'retrieval-aug':33B,86C 'return':101C 'run':5A,50B,67B 'self':26B 'self-host':25B 'side':151C 'sourc':32B,84C 'start':49B 'stronger':154C 'tenant':77B,144C 'tool':22B,147C 'user':3A,7A,57B,61B,121C,125C,142C 'usercanvasservice.accessible':109C 'uuid':129C 'version':164C 'whether':111C 'workflow':69B,135C","nicknames":[],"mitigations":[],"who_affected":"Self-hosted RAGFlow deployments on versions from 0.25.2 up to but not including 0.27.3 are exposed. The risk applies when several users or tenants share the instance and agents are set to private; a single-user deployment has less exposure to the cross-user read.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"first_public_at":"2026-10-30T20:17:08+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","cvss_by":"security-advisories@github.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-119337","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119337","severity":null,"published_at":"2026-10-30T20:17:08+00:00","modified_at":"2026-10-30T20:17:08+00:00","first_seen_at":"2026-10-30T20:25:38+00:00","fetched_at":"2026-10-30T20:25:38+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"}