Description
Windmill is an open-source developer platform for internal code: APIs, background jobs, workflows and UIs. Versions 1.634.6 and below allow non-admin users to obtain Slack OAuth client secrets, which should only be accessible to workspace administrators. The GET /api/w/{workspace}/workspaces/get_settings endpoint returns the slack_oauth_client_secret to any authenticated workspace member, regardless of their admin status. It is expected behavior for non-admin users see a redacted version of workspace settings, as some of them are necessary for the frontend to behave correctly even for non-admins. However, the Slack configuration should not be visible to non-admins. This is a legacy issue where the setting was stored as a plain value instead of using $variable indirection, and it was never added to the redaction logic. This issue has been fixed in version 1.635.0.
Problem types
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Product status
References
github.com/...ndmill/security/advisories/GHSA-f27g-j463-q85w
github.com/...ommit/43218c62852490d0efafa8f94385bfe0e8f2ad82
github.com/windmill-labs/windmill/releases/tag/v1.635.0