CVE-2026-111324
rustdesk-api through 2.7 Authorization Bypass via POST /api/sysinfo
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 15, 2026
- Updated
- Oct 21, 2026
- Reserved
- Oct 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
rustdesk-apilejianwen |
|
References
- https://hackmd.io/@hieuPenguinnn/rustdesk-api-sysinfo-unauth-peer-tamperthird-party-advisory
- https://github.com/lejianwen/rustdesk-api/blob/v2.7/http/router/api.go#L60-L76technical-description
- https://github.com/lejianwen/rustdesk-api/blob/v2.7/http/controller/api/peer.go#L26-L57technical-description
- https://github.com/lejianwen/rustdesk-apiproduct
- VulnCheck Advisory: rustdesk-api through 2.7 Authorization Bypass via POST /api/sysinfothird-party-advisory
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