CVE-2025-54286: CSRF Vulnerability When Using Client Certificate Authentication with the LXD-UI

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-10-02 · updated 2026-10-12
Weakness: CWE-352

Description

Cross-Site Request Forgery (CSRF) in LXD-UI in Canonical LXD versions >= 5.0 on Linux allows an attacker to create and start container instances without user consent via crafted HTML form submissions exploiting client certificate authentication.

Affected products

Canonical LXD: from 5.0.0 before 5.0.5; from 5.21.0 before 5.21.4; from 6.1 before 6.5 — fixed in 5.0.5, 5.21.4, 6.5

How to fix

Upgrade to a fixed version: Canonical LXD 5.0.5, 5.21.4, 6.5. Check the vendor advisory for mitigations.

References

https://github.com/canonical/lxd/security/advisories/GHSA-p8hw-rfjg-689h
https://github.com/canonical/lxd/security/advisories/GHSA-p8hw-rfjg-689h

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