Medium severity6.5NVD Advisory· Published Mar 26, 2026· Updated Jun 17, 2026
CVE-2026-33743
CVE-2026-33743
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/lxc/incus/v6Go | < 6.23.0 | 6.23.0 |
github.com/lxc/incusGo | <= 0.7.0 | — |
Affected products
6- ghsa-coords4 versionspkg:golang/github.com/lxc/incuspkg:golang/github.com/lxc/incus/v6pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/incus&distro=openSUSE%20Tumbleweed
<= 0.7.0+ 3 more
- (no CPE)range: <= 0.7.0
- (no CPE)range: < 6.23.0
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
- (no CPE)range: < 6.23-1.1
Patches
Vulnerability mechanics
References
5- github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-vg76-xmhg-j5x3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33743ghsaADVISORY
- github.com/lxc/incus/commit/4bca6332e8227a5f25f74b51a66b7382e9133aaaghsaWEB
- github.com/lxc/incus/releases/tag/v6.23.0ghsaWEB
News mentions
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