CVE-2026-62940
published 2026-08-21CVE-2026-62940: 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…
PriorityP259critical9.9CVSS 3.1
AVNACLPRLUINSCCHIHAH
EPSS
0.23%
14.0th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| lxc | incus | < 7.3.0 | 7.3.0 |
CVSS provenance
nvdv3.19.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
vendor_redhat9.9CRITICAL
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Bugzilla
CVE-2026-62940 incus: Incus has a project restriction bypass via instance migration config override [fedora-all]
bugzilla·2026-08-26·CVSS 9.9
CVE-2026-62940 [CRITICAL] CVE-2026-62940 incus: Incus has a project restriction bypass via instance migration config override [fedora-all]
CVE-2026-62940 incus: Incus has a project restriction bypass via instance migration config override [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-62940 incus: Incus has a project restriction bypass via instance migration config override
bugzilla·2026-08-21·CVSS 9.9
CVE-2026-62940 [CRITICAL] CVE-2026-62940 incus: Incus has a project restriction bypass via instance migration config override
CVE-2026-62940 incus: Incus has a project restriction bypass via instance migration config override
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.
2026-08-21
Published