Vulnerability 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
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jupyterhub | Systemdspawner | < 0.15 |
Related Weaknesses (CWE)
References
- https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015Release NotesThird Party Advisory
- https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221ePatchThird Party Advisory
- https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-Third Party Advisory
- https://pypi.org/project/jupyterhub-systemdspawner/ProductThird Party Advisory
- https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015Release NotesThird Party Advisory
- https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221ePatchThird Party Advisory
- https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-Third Party Advisory
- https://pypi.org/project/jupyterhub-systemdspawner/ProductThird Party Advisory
FAQ
What is CVE-2020-26261?
CVE-2020-26261 is a vulnerability with a CVSS score of 7.9 (HIGH). 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 spe...
How severe is CVE-2020-26261?
CVE-2020-26261 has been rated HIGH with a CVSS base score of 7.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26261?
Check the references section above for vendor advisories and patch information. Affected products include: Jupyterhub Systemdspawner.