Medium severity5.3NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-111707
CVE-2026-111707
Description
99AI through 4.3.0 contains an insecure direct object reference vulnerability that allows unauthenticated attackers to read other users' chat messages because querySingleChat lacks an owner check. Attackers can send a fingerprint header to obtain a visitor JWT and iterate sequential chatId values to retrieve other users' message content and task data.
Affected products
1Patches
Vulnerability mechanics
References
4- github.com/vastxie/99AI/blob/v4.3.0/service/src/common/auth/jwtAuth.guard.tsnvd
- github.com/vastxie/99AI/blob/v4.3.0/service/src/modules/chatLog/chatLog.service.tsnvd
- hackmd.io/@hieuPenguinnn/99ai-chatlog-unauth-export-and-idornvd
- www.vulncheck.com/advisories/99ai-through-4.3.0-idor-via-api-chatlog-querysinglechat-chat-message-disclosurenvd
News mentions
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