CVE-2026-33743
Last modified
CVE-2026-33743 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linuxcontainers | Incus | < 6.23.0 |
References
- https://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3Exploit, Vendor Advisory
- https://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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