Information disclosure in Zulip Server - CVE-2025-27149
Published: March 31, 2025
Vulnerability identifier: #VU106254
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-27149
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application within non-exported messages and client user agent strings. A remote administrator can gain unauthorized access to sensitive information on the system.
Affected software
Zulip Server
How to mitigate CVE-2025-27149
Install update from vendor's website.
Zulip Server - update to 10.0