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Medium · 5.7 CVE-2026-6369 EUVD-2026-23862

Exposed Session Token in canonical-livepatch client snap

Published Apr 20, 2026 · Updated Apr 20, 2026 · Assigned by canonical

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.

Affected products

VendorProductAffectedFixed
Canonical canonical-livepatch < 10.15.0 10.15.0

References