CVE-2026-85607 — Blinko 1.8.7 Cross-User AI Conversation Read and Write via message tRPC Router
Blinko 1.8.7 contains an authorization bypass (IDOR) vulnerability in multiple tRPC procedures (message.list, message.update, message.delete, message.clearAfter in server/router…
Published: 2026-09-04 · CVSS: 8.7 · CVSS 4.0
Blinko 1.8.7 contains an authorization bypass (IDOR) vulnerability in multiple tRPC procedures (message.list, message.update, message.delete, message.clearAfter in server/routerTrpc/message.ts and conversation.clearMessages in server/routerTrpc/conversation.ts). Although these procedures require authentication, they query the database by caller-supplied conversation or message ID without verifying that the resource belongs to the requesting account. Any authenticated user can therefore read another user's full AI chat history, modify individual message content, and delete or wipe entire conversations by enumerating sequential integer IDs.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7