Vulnerability in Lxc Incus
CVE-2026-115377
Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability that allows malicious migration sources to write host files by planting symlinks in transferred volumes. Attackers can craft rsync or btrfs receive streams with a symlink such as rootfs pointing to the host root, writing files as root for full host compromise.
Published .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
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-579w-c4rw-c8q3 (vendor-advisory)
- www.vulncheck.com/advisories/incus-before-6.0.7-6.1.0-before-7.0.2-and-7.1.0-be… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115377?
- CVE-2026-115377 is a critical-severity vulnerability in Lxc Incus, classified under Improper Link Resolution Before File Access. CVSS score: 9.9/10. Published 2026-10-22.
- How severe is CVE-2026-115377?
- Critical severity. CVSS v3 base score is 9.9 out of 10.