Use of Multiple Resources with Duplicate Identifier Affecting jupyterhub package, versions [0,]


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.25% (15th percentile)

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  • Snyk IDSNYK-PYTHON-JUPYTERHUB-20877496
  • published13 Oct 2026
  • disclosed11 Oct 2026
  • creditHaiND

Introduced: 11 Oct 2026

NewCVE-2026-108752  (opens in a new tab)
CWE-694  (opens in a new tab)

How to fix?

There is no fixed version for jupyterhub.

Overview

jupyterhub is a JupyterHub: A multi-user server for Jupyter notebooks

Affected versions of this package are vulnerable to Use of Multiple Resources with Duplicate Identifier via unescaped hyphen handling in OAuth client ID generation, which allows an authenticated user to collide with another user's named-server OAuth client. An attacker whose username contains a hyphen (e.g., alice-prod) can register a client ID that is identical to the one generated for a legitimate user's named server (e.g., user alice, server prod), overwriting that client. This breaks OAuth login for the targeted server and revokes its tokens when the attacker stops their own server.

CVSS Base Scores

version 4.0
version 3.1