What is CVE-2026-33743?

CVE-2026-33743 is a medium-severity vulnerability in Lxc Incus, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-03-26.

How severe is CVE-2026-33743?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Lxc Incus

CVE-2026-33743

Incus is a system container and virtual machine manager. Prior to version 6.23.0, a specially crafted storage bucket backup can be used by an user with access to Incus' storage bucket feature to crash the Incus daemon. Repeated use of this…

EPSS: 0.000 (6.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Lxc Incus — versions < 6.23.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

https://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-33743?: CVE-2026-33743 is a medium-severity vulnerability in Lxc Incus, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-03-26.
How severe is CVE-2026-33743?: Medium severity. CVSS v3 base score is 6.5 out of 10.