All errata/sisyphus/ALT-PU-2026-5442-2
ALT-PU-2026-5442-2

Package update jupyterhub in branch sisyphus

Version5.4.4-alt1
Published2026-04-04
Max severityMEDIUM
Severity:

Closed issues (2)

CVE-2026-33709
MEDIUM5.1

JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to version 5.4.4, an open redirect vulnerability in JupyterHub allows attackers to construct links which, when clicked, take users to the JupyterHub login page, after which they are sent to an arbitrary attacker-controlled site outside JupyterHub instead of a JupyterHub page, bypassing JupyterHub's check to prevent this. This issue has been patched in version 5.4.4.

Published: 2026-04-03Modified: 2026-04-22
CVSS 3.xMEDIUM 6.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 4.0MEDIUM 5.1
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
GHSA-3vff-hjqv-m7h8
MEDIUM5.1

JupyterHub has an Open Redirect Vulnerability

Published: 2026-04-04Modified: 2026-04-27
CVSS 3.xMEDIUM 5.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 4.0MEDIUM 5.1
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N