CVE-2026-6369

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://discourse.ubuntu.com/t/security-notice-canonical-livepatch-client-snap-vulnerability/80662	Vendor Advisory Mitigation

Configurations

Configuration 1 (hide)

cpe:2.3:a:canonical:livepatch_client:*:*:*:*:*:*:*:*

History

05 Jun 2026, 18:36

Type	Values Removed	Values Added
References	~~() https://discourse.ubuntu.com/t/security-notice-canonical-livepatch-client-snap-vulnerability/80662 -~~	() https://discourse.ubuntu.com/t/security-notice-canonical-livepatch-client-snap-vulnerability/80662 - Vendor Advisory, Mitigation
First Time		Canonical livepatch Client Canonical
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CPE		cpe:2.3:a:canonical:livepatch_client::::::::

20 Apr 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-20 14:16

Updated : 2026-06-05 18:36

NVD link : CVE-2026-6369

Mitre link : CVE-2026-6369

CVE.ORG link : CVE-2026-6369

JSON object : View

Products Affected

canonical

livepatch_client

CWE

CWE-306

Missing Authentication for Critical Function

CWE-732

Incorrect Permission Assignment for Critical Resource

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