What is CVE-2026-33945?

CVE-2026-33945 is a critical-severity vulnerability in Linuxcontainers Incus, classified under Path Traversal. CVSS score: 9.9/10. Published 2026-03-27.

How severe is CVE-2026-33945?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Path Traversal in Linuxcontainers Incus

CVE-2026-33945

Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. Prior to version 6.23.0, an attacker can se…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.004 (36.2th percentile) — read the EPSS interpretation.

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.

Affected products

Linuxcontainers Incus
Lxc Incus — versions < 6.23.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33945?: CVE-2026-33945 is a critical-severity vulnerability in Linuxcontainers Incus, classified under Path Traversal. CVSS score: 9.9/10. Published 2026-03-27.
How severe is CVE-2026-33945?: Critical severity. CVSS v3 base score is 9.9 out of 10.