Placement of User into Incorrect Group Affecting github.com/ubuntu/authd/internal/users package, versions >=0.6.0 <0.6.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMUBUNTUAUTHDINTERNALUSERS-16353436
- published3 May 2026
- disclosed27 Apr 2026
- creditsamikhan-de
Introduced: 27 Apr 2026
CVE-2026-6970 (opens in a new tab)How to fix?
Upgrade github.com/ubuntu/authd/internal/users to version 0.6.4 or higher.
Overview
github.com/ubuntu/authd/internal/users is an authentication daemon for external Broker
Affected versions of this package are vulnerable to Placement of User into Incorrect Group in the process responsible for assigning primary group IDs when a user's primary group ID differs from their user ID and the identity provider record is updated. An attacker can cause files and directories to be owned by unintended groups, potentially resulting in denial of service or unauthorized access by manipulating group assignments and triggering a login event. This is only exploitable if the user's primary group ID is different from their user ID, either due to account creation with earlier versions or manual modification using the authctl group set-gid command.