{"id":"CVE-2026-111630","kind":"vulnerability","aliases":["CVE-2026-111630"],"related":[],"title":"abp-next-admin AI chat lets users read others' conversations by ID","description":"abp-next-admin 10.2.0 through 10.6.0 contains an insecure direct object reference vulnerability in the LINGYUN.Abp.AIManagement module that allows authenticated users to access other users' AI chat conversations by supplying their ConversationId. Attackers holding the Chat permission can call ChatAppService.GetListAsync or SendMessageAsync with a victim's ConversationId GUID to read chat messages and inject messages into that conversation.","summary":"The LINGYUN.Abp.AIManagement module in abp-next-admin 10.2.0 through 10.6.0 does not check ownership of a chat conversation when given its ConversationId. An authenticated user with the Chat permission can read another user's AI chat messages and inject messages into that conversation.","severity":"medium","cvss":5.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["abp-next-admin","ai-chat","ai-tooling","aspnet-boilerplate","dotnet","multi-tenant"],"not_affected_if":["module-not-installed","no-chat-permission-users"],"how_to_check":"- Check the abp-next-admin version in the project's package references: versions 10.2.0 through 10.6.0 are affected.\n- Confirm whether the LINGYUN.Abp.AIManagement module is installed and in use.","fix":"- Upgrade abp-next-admin to a release after `10.6.0`, as listed in the NVD record; the exact fixed version is unknown from the sources.","status":"open","published_at":"2026-10-16T18:17:43+00:00","first_seen_at":"2026-10-23T21:57:13+00:00","triaged_at":"2026-10-25T04:18:28+00:00","updated_at":"2026-10-25T04:18:28+00:00","category":"ai-tooling","confidence":0.6,"triage":{"at":"2026-10-25T04:18:28Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade abp-next-admin to a release after `10.6.0`, as listed in the NVD record; the exact fixed version is unknown from the sources.","reach":"internet","title":"abp-next-admin AI chat lets users read others' conversations by ID","impact":"medium","summary":"The LINGYUN.Abp.AIManagement module in abp-next-admin 10.2.0 through 10.6.0 does not check ownership of a chat conversation when given its ConversationId. An authenticated user with the Chat permission can read another user's AI chat messages and inject messages into that conversation.","category":"ai-tooling","nicknames":[],"who_cares":["abp-next-admin","aspnet-boilerplate","dotnet","ai-chat","multi-tenant"],"confidence":0.6,"needs_auth":"yes","worst_case":"Authenticated users read and inject messages into other users' AI conversations.","analyst_note":"Check the GitHub advisory or fixed release version for abp-next-admin, since the sources give only the affected range and no fix version.","how_to_check":"- Check the abp-next-admin version in the project's package references: versions 10.2.0 through 10.6.0 are affected.\n- Confirm whether the LINGYUN.Abp.AIManagement module is installed and in use.","needs_analyst":true,"not_affected_if":["module-not-installed","no-chat-permission-users"],"who_is_affected":"Teams running abp-next-admin 10.2.0 through 10.6.0 with the LINGYUN.Abp.AIManagement AI chat module enabled, where users hold the Chat permission. Deployments without that module or without AI chat users have a smaller exposure; the sources do not describe other configurations.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000651,"input_tokens":3375,"output_tokens":626,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-111630':16A,19A '-2026':15A,18A '10.2.0':45B,85C '10.6.0':47B,87C 'abp':2A,21B,42B,82C 'abp-next-admin':1A,20B,41B,81C 'access':104C 'admin':4A,23B,44B,84C 'ai':5A,25B,28B,72B,107C 'ai-chat':24B 'ai-tool':27B 'allow':100C 'anoth':69B 'aspnet':31B 'aspnet-boilerpl':30B 'attack':114C 'authent':61B,101C 'boilerpl':32B 'call':120C 'chat':6A,26B,54B,65B,73B,108C,117C,132C 'chatappservice.getlistasync':121C 'check':50B 'contain':88C 'convers':11A,55B,80B,109C,139C 'conversationid':59B,113C,128C 'cve':14A,17A 'direct':91C 'dotnet':33B 'given':57B 'guid':129C 'hold':115C 'id':13A 'inject':76B,135C 'insecur':90C 'let':7A 'lingyun.abp.aimanagement':38B,97C 'messag':74B,77B,133C,136C 'modul':39B,98C 'multi':35B 'multi-ten':34B 'next':3A,22B,43B,83C 'object':92C 'other':10A 'ownership':51B 'permiss':66B,118C 'read':9A,68B,131C 'refer':93C 'sendmessageasync':123C 'suppli':111C 'tenant':36B 'tool':29B 'user':8A,62B,70B,102C,106C 'victim':126C 'vulner':94C","nicknames":[],"mitigations":[],"who_affected":"Teams running abp-next-admin 10.2.0 through 10.6.0 with the LINGYUN.Abp.AIManagement AI chat module enabled, where users hold the Chat permission. Deployments without that module or without AI chat users have a smaller exposure; the sources do not describe other configurations.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T18:17:43+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/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-2026-111630","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111630","severity":null,"published_at":"2026-10-16T18:17:43+00:00","modified_at":"2026-10-19T14:16:57+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"}