CVE-2026-109358 Edgeless Systems Contrast 1.8.0 before 1.24.1 World-Writable Containerd Config Privilege Escalation
Local unprivileged users can escalate privileges by modifying the world-writable containerd configuration file.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109358?
CVE-2026-109358 is a high-severity vulnerability in edgelesssys contrast, published on 12 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Edgeless Systems Contrast 1.8.0 before 1.24.1 contains an incorrect permissions vulnerability where the node installer writes the containerd config world-writable (0666). Local unprivileged users on the node can modify the containerd config, for example overwriting the runc location, to escalate privileges.
Weakness: CWE-732
Which versions are affected by CVE-2026-109358?
How do I fix CVE-2026-109358?
No fix has been published for CVE-2026-109358 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109358 being exploited?
There is no known exploitation of CVE-2026-109358 in the wild and no public exploit code.
Sources
Also known as GHSA-376m-h37w-4rvq, GHSA-vpr9-m7xg-f3fh.