In breve
- CVE-2026-54338 è una vulnerabilità MEDIO (CVSS 5.3) che riguarda jupyterhub.
- Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 0.44%, superiore al 38.0% delle vulnerabilità.
- Correzione: aggiornare a 5.5.0 o successiva.
| Package | Affected versions | Patched versions |
|---|
| jupyterhub PyPI | < 5.5.0
| 5.5.0
|
Description
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.
NVD description
JupyterHub is software that allows users to create a multi-user server for Jupyter notebooks. Prior to 5.5.0, invalid input to form-based login authenticators can place an unbounded attacker-controlled username in failed-login logs, allowing an unauthenticated attacker to consume logging and storage resources. This issue is fixed in version 5.5.0.
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