Critical severity · published Aug 21, 2026
CVE-2026-62867
Incus has an argument injection in storage volume block.create_options that leads to arbitrary command execution
9.9
CVSS
0.5%
EPSS
No
On KEV
Description
Incus is a system container and virtual machine manager. Prior to version 7.3.0, improper validation of user-provided `block.create_options` in storage volume configuration leads to argument injection in the constructed filesystem creation command line. This allows a project-scoped user to inject arbitrary arguments into the binary executed as root. Version 7.3.0 patches the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
incus · lxc
< 7.3.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-62867
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-62867
github.com
https://github.com/lxc/incus/security/advisories/GHSA-q7xw-r4w2-2wcm
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