CVE-2024-37300 Globus `identity_provider` restriction ignored when used with `allow_all` in JupyterHub 5.0
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2024-37300?
CVE-2024-37300 is a high-severity vulnerability in jupyterhub oauthenticator, published on 12 Jun 2024.
Official description
OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with JupyterHub. JupyterHub < 5.0, when used with `GlobusOAuthenticator`, could be configured to allow all users from a particular institution only. This worked fine prior to JupyterHub 5.0, because `allow_all` did not take precedence over `identity_provider`. Since JupyterHub 5.0, `allow_all` does take precedence over `identity_provider`. On a hub with the same config, now all users will be allowed to login, regardless of `identity_provider`. `identity_provider` will basically be ignored. This is a documented change in JupyterHub 5.0, but is likely to catch many users by surprise. OAuthenticator 16.3.1 fixes the issue with JupyterHub 5.0, and does not affect previous versions. As a workaround, do not upgrade to JupyterHub 5.0 when using `GlobusOAuthenticator` in the prior configuration.
Weakness: CWE-863
Which versions are affected by CVE-2024-37300?
3 open source packages ship an affected version, including oauthenticator.
| Package | Affected | Fixed in |
|---|---|---|
oauthenticator PyPI | All versions | 16.3.1 |
oauthenticator PyPI | All versions | 16.3.1 |
oauthenticator PyPI | All versions | 16.3.1 |
How do I fix CVE-2024-37300?
Upgrade oauthenticator to 16.3.1 or later.
Is CVE-2024-37300 being exploited?
There is no known exploitation of CVE-2024-37300 in the wild and no public exploit code.
Sources
Also known as GHSA-gprj-3p75-f996, PYSEC-2026-1711.