CVE-2026-111630 colinin CVE debrief

Who should care

Defenders responsible for chat application security, especially those with authenticated users holding Chat permissions, should assess exposure and prioritize verification. This includes reviewing the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance, and planning vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Why it matters

CVE-2026-111630 allows authenticated users to access other users' AI chat conversations, potentially leading to unauthorized information disclosure and injection of malicious messages.

• Authenticated users with Chat permissions can access other users' AI chat conversations
• Attackers can read chat messages and inject messages into conversations

Technical summary

The abp-next-admin 10.2.0 through 10.6.0 contains an insecure direct object reference vulnerability in the LINGYUN.Abp.AIManagement module. This vulnerability 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. Defenders should prioritize verifying chat application security, especially for authenticated users with Chat permissions.

Defensive priority

Defenders should prioritize verifying chat application security, especially for authenticated users with Chat permissions.

Recommended defensive actions

• Verify chat application security for authenticated users with Chat permissions
• Restrict access to chat conversations based on user permissions
• Monitor chat application logs for suspicious activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the IDOR vulnerability in abp-next-admin 10.2.0 through 10.6.0. The vulnerability allows authenticated users to access other users' AI chat conversations by supplying their ConversationId. The source item provides additional information on the vulnerability, and defenders should verify chat application security, especially for authenticated users with Chat permissions.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.