CVE-2020-26261
High
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
SeverityHigh
CVSS7.9
Exploit probability—
ProductJupyterhub Systemdspawner
PublishedDec 9, 2020
First seenDec 9, 2020
Weakness typeCWE-668CWE-668
How to fix
Update
- jupyterhub systemdspawner0.15 or later
- jupyterhub-systemdspawner0.15.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| jupyterhub systemdspawner | v < 0.15 | 0.15 |
| jupyterhub-systemdspawnerPyPI | v < 0.15.0 | 0.15.0 |
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