CVE-2024-56136 MEDIUM

CVE-2024-56136: /api/v1/jwt/fetch_api_key endpoint can leak if an email address has an account in Zulip server

Vendor Zulip
Product zulip
Weakness CWE-200 · Info exposure
Published January 16, 2025
Last update February 6, 2025
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 16, 2025 CVE published
February 6, 2025 Record updated