Improper Authentication Affecting github.com/lxc/incus/v6/cmd/incus package, versions <6.23.0


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.35% (29th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Authentication vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-GOLANG-GITHUBCOMLXCINCUSV6CMDINCUS-15812301
  • published30 Mar 2026
  • disclosed27 Mar 2026
  • creditgrmpyninja

Introduced: 27 Mar 2026

CVE-2026-33898  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade github.com/lxc/incus/v6/cmd/incus to version 6.23.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Authentication due to improper validation of authentication tokens in the incus webui process. An attacker can gain unauthorized access to the user's Incus instances and potentially escalate privileges by interacting with the local web server using an invalid authentication token. This is only exploitable if an attacker can access the temporary web server running on localhost, either as another local user or by tricking the user into interacting with the web server.

CVSS Base Scores

version 4.0
version 3.1