CVE-2024-56136

Zulip server provides an open-source team chat that helps teams stay productive and focused. Zulip Server 7.0 and above are vulnerable to an information disclose attack, where, if a Zulip server is hosting multiple organizations, an unauthenticated user can make a request and determine if an email address is in use by a user. Zulip Server 9.4 resolves the issue, as does the `main` branch of Zulip Server. Users are advised to upgrade. There are no known workarounds for this issue.

Score

CVSS 4.0 6.9 Medium

Status

Analyzed - security-advisories@github.com

Published

2025-01-16

Last modified

2025-02-06

Weaknesses

CWE-200

Affected products

• Zulip (Zulip)
• Zulip Server (Zulip)

References

• https://github.com/zulip/zulip/commit/c6334a765b1e6d71760e4a3b32ae5b8367f2ed4d
• https://github.com/zulip/zulip/security/advisories/GHSA-5xg8-xhfj-4hm6