Zulip is an open source team chat and Zulip Mobile is an app for iOS and Andriod users. In Zulip Mobile through version 27.189, a crafted link in a message sent by an authenticated user could lead to credential disclosure if a user follows the link. A patch was released in version 27.190.
https://github.com/zulip/zulip-mobile/security/advisories/GHSA-4gj2-j32x-4wg5
https://github.com/zulip/zulip-mobile/releases/tag/v27.190
https://blog.zulip.com/2022/08/24/zulip-server-5-6-security-release/