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CVE-2023-25574

10.0 · CRITICAL

`jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI).

Published Feb 25, 2025CWE-347EPSS 0.36%

Overview

CVE-2023-25574 is a critical-severity vulnerability. It was published on February 25, 2025 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

`jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI). LTI13Authenticator that was introduced in `jupyterhub-ltiauthenticator` 1.3.0 wasn't validating JWT signatures. This is believed to allow the LTI13Authenticator to authorize a forged request. Only users that has configured a JupyterHub installation to use the authenticator class `LTI13Authenticator` are affected. `jupyterhub-ltiauthenticator` version 1.4.0 removes LTI13Authenticator to address the issue. No known workarounds are available.

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/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py#L122-L164GitHubgithub.com/jupyterhub/ltiauthenticator/blob/main/CHANGELOG.md#140---2023-03-01GitHubgithub.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-mcgx-2gcr-p3hp

How CyberStrike helps

Frequently asked questions

What is CVE-2023-25574?

CVE-2023-25574 is a critical-severity vulnerability. It was published on February 25, 2025 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2023-25574?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-25574?

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-2023-25574?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-25574 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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