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Vulnerability record · CVE-2026-62941 · published 21 August 2026

CVE-2026-62941: Incorrect authorization vulnerability

Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project. Version 7.3.0 patches the issue.

9.9 CVSS 3.1 Critical EPSS 0.44% · top 64.0% CWE-863 · Incorrect authorization Deferred
9.9CVSS 3.1 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
18 Sep 2026Last modified by NVD

Description

Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project. Version 7.3.0 patches the issue.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

LinkTags
https://github.com/lxc/incus/security/advisories/GHSA-mq9x-prm8-3vpw
https://github.com/lxc/incus/security/advisories/GHSA-mq9x-prm8-3vpw

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Source: NIST National Vulnerability Database (record CVE-2026-62941), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.