Sentry improperly authorizes muting of alert rules

Impact

An authenticated user can mute alert rules from arbitrary organizations and projects given a known given rule ID. The user does not need to be a member of the organization or have permissions on the project.

In our review, we have identified no instances where alerts have been muted by unauthorized parties.

Patches

A patch was issued to ensure authorization checks are properly scoped on requests to mute alert rules. Authenticated users who do not have the necessary permissions are no longer able to mute alerts.

Sentry SaaS users do not need to take any action. Self-Hosted Sentry users should upgrade to version 24.9.0 or higher.

Affected Versions

The rule mute feature was generally available as of 23.6.0 but users with early access may have had the feature as of 23.4.0.

References

• Prevent muting alerts