Vulnerability identifier: #VU52316
Vulnerability risk: Medium
Exploitation vector: Network
Exploit availability: No
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 implementation of the "all_public_streams" API feature. A remote attacker can receive message traffic to public streams that should have been only accessible to members of the organization.
Install updates from vendor's website.
Vulnerable software versions
Zulip Server: 3.0, 3.1, 3.2, 3.3
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.