jupyterhub
jupyterhub
Affected and fixed version statements observed in the public BlackTree CVE catalogue. These statements describe vulnerability scope, not publisher support entitlement.
Official registry publication history is available at jupyterhub, but registry activity is not a publisher support boundary.
A missing support date does not mean the product is supported. CVE publication dates and affected-version ranges must not be interpreted as EOL dates.
CVE-observed version history
| CVE | Published | Affected versions | Fixed version information | Publisher evidence |
|---|---|---|---|---|
| CVE-2026-54338 | 7 Aug 2026 | < 5.5.0JupyterHub 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. | 5.5.0. | Update reference ↗ |
| CVE-2026-40864 | 22 May 2026 | >= 4.1.0, < 5.4.5 | 5.4.5. | Update reference ↗ |
| CVE-2026-33709 | 3 Apr 2026 | < 5.4.4 | No fixed version is explicitly recorded in the structured CVE data. | Update reference ↗ |
| CVE-2024-41942 | 8 Aug 2024 | < 4.1.6; >= 5.0.0, < 5.1.0 | An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release. | Update reference ↗ |
| CVE-2024-28233 | 27 Mar 2024 | < 4.1.0 | An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release. | Update reference ↗ |
| CVE-2021-41247 | 4 Nov 2021 | >= 1.0.0, < 1.5.0 - jupyterhub (pip); < 1.2.0 - jupyterhub (helm) | An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release. | Update reference ↗ |
How this record is maintained
The CVE inventory is reconciled automatically from cve.blacktree.nl. Exact identity matches link to existing Lifecycle product or package histories. Unmatched products stay in a prioritised publisher-source research queue, and Lifecycle marks the date gap instead of inferring a support boundary from vulnerability data.