GHSA-p43p-whwx-q52h
JupyterHub has Unauthenticated Denial of Service via Unbounded Username Logging on Failed Login
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| PyPI | jupyterhub | < 5.5.0 | 5.5.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
Invalid input to login resulted in unbounded logging output. Only form-based Authenticators (the default PAM Authenticator, but not the more widely used OAuthenticator) are affected.
### Patches
Upgrade to 5.5.0.
### Workarounds
Use an Authenticator that doesn't use a login form, such as OAuthenticator.
References
External links from the advisory. They lead to third-party sites.