CVE-2026-6369 Exposed Session Token in canonical-livepatch client snap
Local unprivileged users can steal root-level authentication tokens from the Livepatch client socket, enabling unauthorized access to Livepatch services.
- 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-2026-6369?
CVE-2026-6369 is a medium-severity vulnerability in canonical-livepatch, published on 20 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An improper access control vulnerability in the canonical-livepatch snap client prior to version 10.15.0 allows a local unprivileged user to obtain a sensitive, root-level authentication token by sending an unauthenticated request to the livepatchd.sock Unix domain socket. This vulnerability is exploitable on systems where an administrator has already enabled the Livepatch client with a valid Ubuntu Pro subscription. This token allows an attacker to access Livepatch services using the victim's credentials, as well as potentially cause issues to the Livepatch server.
Which versions are affected by CVE-2026-6369?
It affects 1 product.
Products include Canonical Livepatch Client.
How do I fix CVE-2026-6369?
No fix has been published for CVE-2026-6369 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-6369 being exploited?
There is no known exploitation of CVE-2026-6369 in the wild and no public exploit code.
Sources
Also known as GHSA-c8hq-8vfh-x23r.