Resource Exhaustion Affecting jupyterhub package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.28% (21st percentile)

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  • Snyk IDSNYK-ECHOLATEST-JUPYTERHUB-18592129
  • published8 Aug 2026
  • disclosed7 Aug 2026

Introduced: 7 Aug 2026

NewCVE-2026-54338  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest jupyterhub.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jupyterhub package and not the jupyterhub package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.