10

CVE-2023-25574: jupyter lti_jupyterhub_authenticator

CVSS: 10.0v3.1CriticalAnalyzed
AliasesGHSA-mcgx-2gcr-p3hpPYSEC-2025-120
Published 25-02-2025Last modified 25-02-2025
Open JSON

Vulnerability summary

CVE-2023-25574 is a critical (CVSS 10.0) vulnerability in jupyter lti_jupyterhub_authenticator. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 27.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-02-2025
    PublishedVulnerability first disclosed.
  2. 25-02-2025
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

0.00 pp

From 0.36% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Jupyter1 product
Jupyterhub1 product
PyPI1 product
  • jupyterhub-ltiauthenticator≥ 1.3.0, < 1.4.0 | ≤ 1.3.0

3 vendors · 3 products

References

6 links