LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI. Prior to version 1.6.3, the LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send repeated requests with unique nonces to gradually exhaust server memory, causing a denial of service. This issue has been patched in version 1.6.3.
| Vendor | Product | Versions |
|---|---|---|
| pypa | jupyterhub-ltiauthenticator | < 1.6.3 |
Updated affected versions to include 1.6.2, changed severity to HIGH, and noted no exploit available.
Initial creation
