# CVE-2026-23954: incus: Incus is a system container and virtual machine manager

CVE-2026-23954 is fixed in 11 products on 1 platform, first by DEBIAN-CVE-2026-23954, released January 22, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-23954
- Priority: High
- CVSS: 8.7 (high)
- EPSS: 0.0078
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 22, 2026

## Description

Incus is a system container and virtual machine manager. Versions 6.21.0 and below allow a user with the ability to launch a container with a custom image (e.g a member of the ‘incus’ group) to use directory traversal or symbolic links in the templating functionality to achieve host arbitrary file read, and host arbitrary file write. This ultimately results in arbitrary command execution on the host. When using an image with a metadata.yaml containing templates, both the source and target paths are not checked for symbolic links or directory traversal. This can also be exploited in IncusOS. A fix is planned for versions 6.0.6 and 6.21.0, but they have not been released at the time of publication.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | govulncheck-vulndb opensuse-leap 15.6 | 0.0.20260205T172317-150000.1.146.1 | [SUSE-SU-2026:0403-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0403-1.md) | Feb 6, 2026 |
| 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+deb13u4 | [DEBIAN-CVE-2026-23954](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23954.md) | Jan 22, 2026 |
| Linux | incus Debian 14 | 6.0.5-8 | [DEBIAN-CVE-2026-23954](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23954.md) | Jan 22, 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 |
| Linux | lxd Debian 13.5 (trixie) | 5.0.2+git20231211.1364ae4-9+deb13u3 | [DEBIAN-CVE-2026-23954](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23954.md) | Jan 22, 2026 |

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Data as of 2026-11-09T07:25:28Z 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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