HIGH 8.3 NVD
CVE-2026-74869
stoatchat before 0.15.0 contains a missing authorization vulnerability in the Subscribe message handler that allows authenticated attackers to enumerate members
stoatchat before 0.15.0 contains a missing authorization vulnerability in the Subscribe message handler that allows authenticated attackers to enumerate members and monitor profile updates of private servers without membership. Attackers can subscribe to any server's member-update topic by sending a Subscribe message with an arbitrary server ID, receiving live UserUpdate events including display names, avatars, and status changes for members they should not have access to.
References
- https://github.com/stoatchat/stoatchat/security/advisories/GHSA-jj3j-9qr7-jgfc
- https://www.vulncheck.com/advisories/stoatchat-before-missing-authorization-via-subscribe
This high severity vulnerability with a CVSS score of 8.3 was published on 2026-08-17 via NVD.
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