CVE-2026-111324

Description

rustdesk-api through 2.7 contains an authorization bypass vulnerability that allows unauthenticated attackers to overwrite existing peer records by supplying only a target device ID to POST /api/sysinfo. Attackers can overwrite hostname, username, OS and uuid without uuid verification, then log in presenting that uuid to rebind the peer to their account.

References

• https://github.com/lejianwen/rustdesk-api
• https://github.com/lejianwen/rustdesk-api/blob/v2.7/http/controller/api/peer.go#L26-L57
• https://github.com/lejianwen/rustdesk-api/blob/v2.7/http/router/api.go#L60-L76
• https://hackmd.io/@hieuPenguinnn/rustdesk-api-sysinfo-unauth-peer-tamper
• https://www.vulncheck.com/advisories/rustdesk-api-through-2.7-authorization-bypass-via-post-api-sysinfo