PyPI: jupyterhub-systemdspawner

CVE-2020-26261

Safety vulnerability ID: SFTY-20201209-51812

Safety legacy ID: pyup.io-42288

Jupyterhub-systemdspawner 0.15 includes a fix for CVE-2020-26261: 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.

Created at: Jul 5, 2026Updated at: Jul 5, 2026

Overview

user-readable api tokens in systemd units for JupyterHub

Advisory

Jupyterhub-systemdspawner 0.15 includes a fix for CVE-2020-26261: 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.

Affected Package

Affecting jupyterhub-systemdspawner package, versions<0.15

Also affects

---

How to Fix

Upgradejupyterhub-systemdspawnerto0.15.0or higher.

Mitigation and Workarounds

---

Vulnerable Functions

Functions linked to known vulnerabilities.

Vulnerable function data is available for Enterprise customers

Book a call with us to see Safety in action.

Safety

Verified by Safety

Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.

Learn more