Auth bypass in Lejianwen Rustdesk-Api
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/rustdesk-api-sysinfo-unauth-peer-tamper (third-party-advisory)
- github.com/lejianwen/rustdesk-api/blob/v2.7/http/router/api.go (technical-description)
- github.com/lejianwen/rustdesk-api/blob/v2.7/http/controller/api/peer.go (technical-description)
- github.com/lejianwen/rustdesk-api (product)
- www.vulncheck.com/advisories/rustdesk-api-through-2.7-authorization-bypass-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111324?
- CVE-2026-111324 is a medium-severity vulnerability in Lejianwen Rustdesk-Api, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-10-15.
- How severe is CVE-2026-111324?
- Medium severity. CVSS v3 base score is 5.3 out of 10.