CVE-2026-111630

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.

CVSS 4.0

5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-25)

CWE

CWE-639

Published

2026-10-16

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

References

• https://github.com/colinin/abp-next-admin/blob/10.6.0/aspnet-core/modules/ai/LINGYUN.Abp.AIManagement.Application/LINGYUN/Abp/AIManagement/Chats/ChatAppService.cs#L27-L52
• https://github.com/colinin/abp-next-admin/blob/10.6.0/aspnet-core/modules/ai/LINGYUN.Abp.AIManagement.Domain/LINGYUN/Abp/AIManagement/Chats/ConversationStore.cs#L49-L66
• https://hackmd.io/@hieuPenguinnn/abp-next-admin-aimanagement-chat-idor
• https://www.vulncheck.com/advisories/abp-next-admin-10.2.0-through-10.6.0-idor-in-aimanagement-chat-conversations
• https://hackmd.io/@hieuPenguinnn/abp-next-admin-aimanagement-chat-idor

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