Vulnerability record/PUBLISHED/Published Aug 21, 2026 14:19:45 UTC
CVE-2026-48750
Incus is a system container and virtual machine manager. Prior to version 7.2.0, the `record-output` parameter of the `/instances/$name/exec` endpoint stores the output of the command in the `exec-output` directory of the instance. If `exec-output` is a symlink, file named `exec_UUID.stdout` and `exec_UUID.stderr` can be written to an arbitrary location where the `.stdout` file will contain arbitrary content. This behavior can be abused for arbitrary command execution. Version 7.2.0 contains a patch.
Base score9.9/ 10
SeverityCriticalCVSS 3.1
Exploitability / impact
CVSS metric breakdown
Base severityCritical
Attack vectorNetworkAV
Attack complexityLowAC
Privileges requiredLowPR
User interactionNoneUI
ScopeChangedS
Confidentiality impactHighC
Integrity impactHighI
Availability impactHighA
CVSS vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HCVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.
Record context
CVE Numbering AuthorityGitHub_M
Last updatedNov 5, 2026 23:50:24 UTC
PublishedAug 21, 2026 14:19:45 UTC
ReservedMay 22, 2026 19:10:35 UTC