PT-2026-33770 · Canonical · Canonical-Livepatch

Published 2026-04-20 · Updated 2026-04-20 · CVE-2026-6369

NVD

CVSS v4.0

5.7

Medium

AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Missing Authentication

Incorrect Permission

Weakness Enumeration

CWE-306

CWE-732

Related Identifiers

CVE-2026-6369

Affected Products

Canonical-Livepatch

References · 2

• https://discourse.ubuntu.com/t/security-notice-canonical-livepatch-client-snap-vulnerability/80662 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-6369 · Security Note