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.
The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.
The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses.
| Link | Tags |
|---|---|
| https://github.com/zulip/zulip-mobile/security/advisories/GHSA-4gj2-j32x-4wg5 | third party advisory |
| https://blog.zulip.com/2022/08/24/zulip-server-5-6-security-release/ | release notes vendor advisory |
| https://github.com/zulip/zulip-mobile/releases/tag/v27.190 | third party advisory |