user-readable api tokens in systemd units for JupyterHub

CAO 7.9CVE-2020-26261 · GHSA-cg54-gpgr-4rm6 · PYSEC-2020-52 · Công bố 09/12/2020 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2020-26261 là lỗ hổng mức CAO (CVSS 7.9) ảnh hưởng jupyterhub-systemdspawner, systemdspawner (jupyterhub).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.48%, cao hơn 41.6% các lỗ hổng khác.
Cách xử lý: cập nhật lên 0.15.0, 0.15 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
jupyterhub-systemdspawner PyPI	`< 0.15.0`	`0.15.0`
systemdspawner jupyterhub	`< 0.15`	`0.15`

Mô tả

Impact

user API tokens issued to single-user servers are specified in the environment of systemd units, which are accessible to all users.

In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default.

Patches

Patched in jupyterhub-systemdspawner v0.15

Workarounds

No workaround other than upgrading systemdspawner to 0.15

For more information

If you have any questions or comments about this advisory:

Open a thread in the Jupyter forum
Email us at [email protected]

Mô tả của NVD

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