# CVE-2026-41684: lxd: Incus is a system container and virtual machine manager

CVE-2026-41684 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-41684, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-41684
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0041
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 7, 2026

## Description

Incus is a system container and virtual machine manager. Prior to version 7.0.0, backup.GetInfo() trusts the inline backup/index.yaml config when present and only falls back to parsing the legacy backup/container/backup.yaml file if result.Config == nil. As a result, an archive can carry a valid inline config that passes the initial import preflight while also carrying a malformed legacy backup/container/backup.yaml file that is reparsed later from the restored file system. ParseConfigYamlFile() accepts YAML documents with no container section, and multiple downstream consumers then dereference. Container without checking for nil. Confirmed examples in the instance restore and import flow include backup.UpdateInstanceConfig() and internalImportFromBackup(). An authenticated user with permission to import instance backups may be able to crash the Incus daemon with a crafted backup archive whose inline backup/index.yaml is valid but whose extracted legacy backup.yaml omits container. The crash occurs in the restore path after archive extraction has begun. This issue has been patched in version 7.0.0.

## 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+deb13u7 | [DEBIAN-CVE-2026-41684](https://patchblox.com/security/data/fix/linux/debian-cve-2026-41684.md) | May 15, 2026 |
| Linux | incus Debian 14 | 7.0.0-1 | [DEBIAN-CVE-2026-41684](https://patchblox.com/security/data/fix/linux/debian-cve-2026-41684.md) | May 15, 2026 |
| Linux | lxd Debian 13.5 (trixie) | 5.0.2+git20231211.1364ae4-9+deb13u6 | [DEBIAN-CVE-2026-41684](https://patchblox.com/security/data/fix/linux/debian-cve-2026-41684.md) | May 15, 2026 |

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Data as of 2026-11-08T19:12:23Z 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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