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9.9
CVE-2026-62940: Security update for incus
CVE-2026-62940 · published 13 days ago
Summary
A security issue affects incus (Debian). The advisory does not describe the issue in detail. Check the linked advisory for the fixed version and details.
What to do
- Update debian incus to version 6.0.4-2+deb13u9.
- Update debian incus to version 7.0.1-2.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Debian:13 | debian | incus |
< 6.0.4-2+deb13u9 Fix: upgrade to 6.0.4-2+deb13u9
|
| Debian:14 | debian | incus |
< 7.0.1-2 Fix: upgrade to 7.0.1-2
|
| Ubuntu:Pro:24.04:LTS | canonical | incus | All versions |
| Ubuntu:Pro:26.04:LTS | canonical | incus | All versions |
| – | lxc | incus | < 7.3.0 |
Original advisory text
Incus is a system container and virtual machine manager. Prior to version 7.3.0, when migrating an instance to another cluster member, user-supplied configuration overrides (including security-crit...
Incus is a system container and virtual machine manager. Prior to version 7.3.0, when migrating an instance to another cluster member, user-supplied configuration overrides (including security-critical keys like `security.privileged` and `raw.lxc`) are applied without any project restriction enforcement, allowing a restricted project user to escalate to a privileged container and escape to the host. Version 7.3.0 patches the issue.
References
- https://security-tracker.debian.org/tracker/CVE-2026-62940 Vendor Advisory
- https://ubuntu.com/security/CVE-2026-62940 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-62940 Third Party Advisory
- https://github.com/lxc/incus/security/advisories/GHSA-qw5c-v953-38gw Third Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-62940 Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62940... Vendor Advisory
- https://github.com/lxc/incus/pull/3750 Third Party Advisory
Severity
9.9
Critical
CVSS 3.1: 9.9 (MITRE)
Exploitation
EPSS <1%
Type
CWE-862Missing Authorization
Timeline
Published21 Aug 2026
Updated2 Sep 2026
First seen31 Jul 2026
Sources
CVE-2026-62940 · NVD
DEBIAN-CVE-2026-62940 · OSV
UBUNTU-CVE-2026-62940 · OSV
CVE-2026-62940 · OSV
GHSA-qw5c-v953-38gw · GHSA
CVE-2026-62940 · MITRE
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