Description
JupyterHub 1.1.0 allows CSRF in the admin panel via a request that lacks an _xsrf field, as demonstrated by a /hub/api/user request (to add or remove a user account).
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jupyterhub | 3.0.0+ds1-1 | — |
| Debian 13 | jupyterhub | 3.0.0+ds1-1 | — |
| Debian 12 | jupyterhub | 3.0.0+ds1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | jupyterhub | No fix yet | — |
| Ubuntu 26.04 LTS | jupyterhub | No fix yet | — |
| Ubuntu 25.10 | jupyterhub | No fix yet | — |
| Ubuntu 24.04 LTS | jupyterhub | No fix yet | — |
| Ubuntu 22.04 LTS | jupyterhub | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | jupyterhub | < 1.2.0b1 | 1.2.0b1 | GHSA-7xx3-qp5w-fw96 |