CVE-2026-108752 (GCVE-0-2026-108752)
Vulnerability from cvelistv5
Published
2026-10-11 12:19
Modified
2026-10-13 17:00
Severity ?
2.3 (Low) - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
4.2 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
CWE
  • CWE-694 - Use of Multiple Resources with Duplicate Identifier
Summary
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.
References
Impacted products
Vendor Product Version
jupyterhub jupyterhub Version: 0   ≤ 6.0.1
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