# CVE-2026-33743: incus: Incus is a system container and virtual machine manager

CVE-2026-33743 is fixed in 10 products on 1 platform, first by DEBIAN-CVE-2026-33743, released March 26, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-33743
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0039
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 26, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | govulncheck-vulndb opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | [OPENSUSE-SU-2026:21483-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21483-1.md) | Jul 30, 2026 |
| Linux | incus Debian 13.5 (trixie) | 6.0.4-2+deb13u5 | [DEBIAN-CVE-2026-33743](https://patchblox.com/security/data/fix/linux/debian-cve-2026-33743.md) | Mar 26, 2026 |
| Linux | incus Debian 14 | 6.0.6-2 | [DEBIAN-CVE-2026-33743](https://patchblox.com/security/data/fix/linux/debian-cve-2026-33743.md) | Mar 26, 2026 |
| Linux | incus Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |
| Linux | incus-agent Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |
| Linux | incus-agent-debuginfo Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |
| Linux | incus-client Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |
| Linux | incus-client-debuginfo Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |
| Linux | incus-debuginfo Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |
| Linux | incus-debugsource Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |
| Linux | incus-tools Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |
| Linux | incus-tools-debuginfo Fedora 43 | 6.23-3.fc43 | [FEDORA-2026-094B7621CF](https://patchblox.com/security/data/fix/linux/fedora-2026-094b7621cf.md) | Apr 10, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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