Auth bypass in Lxc Incus
CVE-2026-115370
Incus 6.0.5 before 6.0.7, 6.12.0 before 7.0.2, and 7.1.0 before 7.5.0 contains a restriction bypass vulnerability that allows restricted project users to use pull mode migration via clustered refresh requests. Attackers with instance creation rights can send a refresh migration request for an existing instance to make the server open outbound TLS websocket connections and probe reachable services.
Vulnerability class: Broken Access Control
Published .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
- github.com/lxc/incus/security/advisories/GHSA-443p-7392-h4v2 (vendor-advisory)
- www.vulncheck.com/advisories/incus-6.0.5-before-6.0.7-6.12.0-before-7.0.2-and-7… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115370?
- CVE-2026-115370 is a medium-severity vulnerability in Lxc Incus, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-10-22.
- How severe is CVE-2026-115370?
- Medium severity. CVSS v3 base score is 4.3 out of 10.