CVE-2020-26261

HighCVSS 7.9/10Last modified Jun 17, 2026

Description

jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15

Metrics

CVSS 3.1 7.9/10CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-668

Affected software

No affected versions have been published.

Timeline

Published
Dec 9, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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