CVE-2026-111324

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.

CVSS 4.0

6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-25)

CWE

CWE-639

Published

2026-10-15

Modified

2026-10-21

Record from

the NVD, synced 2026-10-21

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

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