DEBIAN-CVE-2026-33945

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Source
https://security-tracker.debian.org/tracker/CVE-2026-33945
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33945.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-33945
Upstream
Published
2026-03-27T00:16:23Z
Modified
2026-09-14T17:03:08Z
Severity
  • 9.6 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H CVSS Calculator
Summary
[none]
Details

Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. Prior to version 6.23.0, an attacker can set a configuration key named something like systemd.credential.../../../../../../root/.bashrc to cause Incus to write outside of the credentials directory associated with the container. This makes use of the fact that the Incus syntax for such credentials is systemd.credential.XYZ where XYZ can itself contain more periods. While it's not possible to read any data this way, it's possible to write to arbitrary files as root, enabling both privilege escalation and denial of service attacks. Version 6.23.0 fixes the issue.

References

Affected packages

Debian:14 / incus

Package

Name
incus
Purl
pkg:deb/debian/incus?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.6-2

Affected versions

6.*
6.0.4-2
6.0.4-3
6.0.5-1
6.0.5-2
6.0.5-3
6.0.5-4
6.0.5-5
6.0.5-6
6.0.5-7
6.0.5-8
6.0.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33945.json"