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CVE-2023-25574

Jupyter Lti Jupyterhub Authenticator vulnerability

10.0 CRITICALEPSS 0.36%
  1. Published25 Feb 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Jupyter Lti Jupyterhub Authenticator1.3.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2023-25574 being actively exploited?

CVE-2023-25574 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.36%.

How severe is CVE-2023-25574?

CVE-2023-25574 has a CVSS 3.1 base score of 10.0, rated critical. EPSS estimates a 0.36% probability of exploitation.

Which products are affected by CVE-2023-25574?

Affected products include Jupyter Lti Jupyterhub Authenticator.

How do I fix CVE-2023-25574?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-25574 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.