{"id":"CVE-2026-115725","kind":"vulnerability","aliases":["CVE-2026-115725"],"related":[],"title":"Chatwoot: agent bots can post into other accounts' conversations","description":"Chatwoot before 4.17.0 contains an authorization bypass vulnerability that allows authenticated agent bots to access other accounts by supplying a foreign contact inbox source_id. Attackers can call the conversations create endpoint with another account's source_id to create or retrieve conversations and post messages to that account's contacts.","summary":"Chatwoot before 4.17.0 lets an authenticated agent bot pass another account's contact inbox source_id to the conversations create endpoint. An attacker can then create or read conversations and send messages to that account's contacts.","severity":"medium","cvss":4.2,"epss":0.00328,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["agent-bots","chatwoot","package","self-hosted"],"not_affected_if":["no-agent-bots","version-4.17.0-or-later"],"how_to_check":"- Check the installed Chatwoot version; `unknown` if the sources do not give the deployment path.\n- Confirm whether agent bots are in use on the instance.","fix":"- Upgrade Chatwoot to `4.17.0` or later.\n- Rotate agent bot access tokens if the instance ran an older version with bots enabled.","status":"open","published_at":"2026-10-23T12:18:13+00:00","first_seen_at":"2026-10-23T21:57:32+00:00","triaged_at":"2026-10-25T04:41:21+00:00","updated_at":"2026-10-25T12:38:51+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-25T04:41:21Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Chatwoot to `4.17.0` or later.\n- Rotate agent bot access tokens if the instance ran an older version with bots enabled.","reach":"internet","title":"Chatwoot: agent bots can post into other accounts' conversations","impact":"medium","summary":"Chatwoot before 4.17.0 lets an authenticated agent bot pass another account's contact inbox source_id to the conversations create endpoint. An attacker can then create or read conversations and send messages to that account's contacts.","category":"package","nicknames":[],"who_cares":["chatwoot","self-hosted","agent-bots"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker reads and posts messages in other accounts' conversations","analyst_note":"","how_to_check":"- Check the installed Chatwoot version; `unknown` if the sources do not give the deployment path.\n- Confirm whether agent bots are in use on the instance.","needs_analyst":false,"not_affected_if":["version-4.17.0-or-later","no-agent-bots"],"who_is_affected":"Self-hosted or hosted Chatwoot instances running a version before 4.17.0 that have agent bots configured. Exposure needs an agent bot credential, so instances without agent bots have less reason to worry, but upgrading is still the fix.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000582,"input_tokens":3328,"output_tokens":498,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-115725':12A,15A '-2026':11A,14A '4.17.0':26B,63C 'access':75C 'account':8A,34B,58B,77C,95C,109C 'agent':2A,17B,30B,72C 'agent-bot':16B 'allow':70C 'anoth':33B,94C 'attack':46B,86C 'authent':29B,71C 'author':66C 'bot':3A,18B,31B,73C 'bypass':67C 'call':88C 'chatwoot':1A,19B,24B,61C 'contact':36B,60B,82C,111C 'contain':64C 'convers':9A,42B,52B,90C,103C 'creat':43B,49B,91C,100C 'cve':10A,13A 'endpoint':44B,92C 'foreign':81C 'host':23B 'id':39B,85C,98C 'inbox':37B,83C 'let':27B 'messag':55B,106C 'packag':20B 'pass':32B 'post':5A,105C 'read':51B 'retriev':102C 'self':22B 'self-host':21B 'send':54B 'sourc':38B,84C,97C 'suppli':79C 'vulner':68C","nicknames":[],"mitigations":[],"who_affected":"Self-hosted or hosted Chatwoot instances running a version before 4.17.0 that have agent bots configured. Exposure needs an agent bot credential, so instances without agent bots have less reason to worry, but upgrading is still the fix.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-23T12:18:13+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/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-2026-115725","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115725","severity":null,"published_at":"2026-10-23T12:18:13+00:00","modified_at":"2026-10-23T19:57:42+00:00","first_seen_at":"2026-10-23T21:57:32+00:00","fetched_at":"2026-10-23T22:29:03+00:00","note":null},{"source":"epss","external_id":"CVE-2026-115725","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115725","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-25T12:38:51+00:00","fetched_at":"2026-10-25T12:38:51+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"}