Vulnerability details
CVE-2026-62940
lxc incus
Incus has a project restriction bypass via instance migration config override
CVSS 3.1
9.9Critical
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.9Critical | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| lxc | incus | < 7.3.0 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/lxc/incus/security/advisories/GHSA-qw5c-v953-38gw x_refsource_CONFIRM
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Details
- Published
- 2026-08-21
- Last updated
- 2026-08-21
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.41%
Probability of exploitation in 30 days
36.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-862Missing Authorization