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CVE-2024-56136

5.3 · MEDIUM

Zulip server provides an open-source team chat that helps teams stay productive and focused.

Published Jan 16, 2025CWE-200EPSS 0.57%

Overview

CVE-2024-56136 is a medium-severity vulnerability. It was published on January 16, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/zulip/zulip/commit/c6334a765b1e6d71760e4a3b32ae5b8367f2ed4dGitHubgithub.com/zulip/zulip/security/advisories/GHSA-5xg8-xhfj-4hm6

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56136?

CVE-2024-56136 is a medium-severity vulnerability. It was published on January 16, 2025 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-56136?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-56136?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-56136?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56136 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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