CVE-2026-23954

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Source
https://cve.org/CVERecord?id=CVE-2026-23954
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23954.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23954
Aliases
Downstream
Published
2026-01-22T21:45:55.696Z
Modified
2026-02-05T06:26:06.330985Z
Severity
  • 8.7 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Incus container image templating arbitrary host file read and write
Details

Incus is a system container and virtual machine manager. Versions 6.21.0 and below allow a user with the ability to launch a container with a custom image (e.g a member of the ‘incus’ group) to use directory traversal or symbolic links in the templating functionality to achieve host arbitrary file read, and host arbitrary file write. This ultimately results in arbitrary command execution on the host. When using an image with a metadata.yaml containing templates, both the source and target paths are not checked for symbolic links or directory traversal. This can also be exploited in IncusOS. A fix is planned for versions 6.0.6 and 6.21.0, but they have not been released at the time of publication.

Database specific 
{
    "cwe_ids": [
        "CWE-22"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23954.json"
}
References

Affected packages

Git / github.com/lxc/incus

Affected ranges

Type
GIT
Repo
https://github.com/lxc/incus
Events
Introduced
38d0bc57d4ae8926b0adfad475f2d4ca70a1c734
Last affected
7e6d27123ebaa4bf9bff4d9fc30c11d9206feb83
Database specific 
{
    "versions": [
        {
            "introduced": "6.1.0"
        },
        {
            "last_affected": "6.20.0"
        }
    ]
}
Type
GIT
Repo
https://github.com/lxc/incus
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
a87f49a2491fa3a0e74896c1f2322bd356c59ddc
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "6.0.5"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v0.5.1
v0.6.0
v0.7.0
v6.*
v6.0.0
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.1.0
v6.10.0
v6.10.1
v6.11.0
v6.12.0
v6.13.0
v6.14.0
v6.15.0
v6.16.0
v6.17.0
v6.18.0
v6.19.0
v6.19.1
v6.2.0
v6.20.0
v6.3.0
v6.4.0
v6.5.0
v6.6.0
v6.7.0
v6.8.0
v6.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23954.json"