PYSEC-2025-120
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/jupyterhub-ltiauthenticator/PYSEC-2025-120.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2025-120
- Aliases
- Published
- 2025-02-25T15:15:16.227Z
- Modified
- 2026-05-21T15:00:14.269578987Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
jupyterhub-ltiauthenticatoris a JupyterHub authenticator for learning tools interoperability (LTI). LTI13Authenticator that was introduced injupyterhub-ltiauthenticator1.3.0 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 classLTI13Authenticatorare affected.jupyterhub-ltiauthenticatorversion 1.4.0 removes LTI13Authenticator to address the issue. No known workarounds are available. - References
-
- https://github.com/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py#L122-L164
- https://github.com/jupyterhub/ltiauthenticator/blob/main/CHANGELOG.md#140---2023-03-01
- https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-mcgx-2gcr-p3hp
Affected packages
PyPI / jupyterhub-ltiauthenticator
Package
- Name
- jupyterhub-ltiauthenticator
- View open source insights on deps.dev
- Purl
- pkg:pypi/jupyterhub-ltiauthenticator