CVE-2026-33743

MEDIUM

6.5

Description

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 attack can be used to keep the server offline causing a denial of service of the control plane API. This does not impact any running workload, existing containers and virtual machines will keep operating. Version 6.23.0 fixes the issue.

CVE Details

CVSS v3.1 Score6.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/26/2026

Last Modified3/30/2026

Sourcenvd

Honeypot Sightings0

Affected Products

linuxcontainers:incus

Weaknesses (CWE)

CWE-770

References

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

https://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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