BIT-jupyterhub-2026-108752

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/jupyterhub/BIT-jupyterhub-2026-108752.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-jupyterhub-2026-108752
Aliases
Published
2026-10-16T08:38:05Z
Modified
2026-10-16T09:45:25Z
Summary
JupyterHub through 6.0.1 OAuth Client ID Collision via Unescaped Hyphen
Details

JupyterHub through 6.0.1 contains an identifier collision vulnerability that allows authenticated users to overwrite another user's named-server OAuth client by registering a hyphenated username. Attackers holding a name like alice-prod can overwrite the client for alice's server prod, breaking OAuth login and revoking tokens by stopping their own server.

Database specific 
{
    "cpes":  [
        "cpe:2.3:a:jupyter:jupyterhub:*:*:*:*:*:python:*:*"
    ],
    "severity":  "Medium"
}
References

Affected packages

Bitnami / jupyterhub

Package

Name
jupyterhub
Purl
pkg:bitnami/jupyterhub

Severity

  • 4.2 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.1.0

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/jupyterhub/BIT-jupyterhub-2026-108752.json"