Information disclosure in Zulip Server - CVE-2024-56136
Published: January 17, 2025
Vulnerability identifier: #VU102877
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2024-56136
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Zulip
Affected software:
Zulip Server
Zulip Server
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in the /api/v1/jwt/fetch_api_key endpoint. A remote attacker can make a request and determine if an email address is in use by a user.
How to mitigate CVE-2024-56136
Install updates from vendor's website.