Vulnerability in Jupyterhub Ltiauthenticator
CVE-2023-25574
`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 allo…
EPSS: 0.004 (59.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Jupyterhub Ltiauthenticator — versions = 1.3.0
Weakness classification (CWE)
References
- https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-mcgx-2gcr-p3hp (x_refsource_CONFIRM)
- https://github.com/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py#L122-L164 (x_refsource_MISC)
- https://github.com/jupyterhub/ltiauthenticator/blob/main/CHANGELOG.md#140---2023-03-01 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-25574?
- CVE-2023-25574 is a critical-severity vulnerability in Jupyterhub Ltiauthenticator, classified under Improper Verification of Cryptographic Signature. CVSS score: 10.0/10. Published 2025-02-25.
- How severe is CVE-2023-25574?
- Critical severity. CVSS v3 base score is 10.0 out of 10.