What is CVE-2022-31027?

CVE-2022-31027 is a medium-severity vulnerability in Jupyterhub Oauthenticator, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.2/10. Published 2022-06-06.

How severe is CVE-2022-31027?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Auth bypass in Jupyterhub Oauthenticator

CVE-2022-31027

OAuthenticator is an OAuth token library for the JupyerHub login handler. CILogonOAuthenticator is provided by the OAuthenticator package, and lets users log in to a JupyterHub via CILogon. This is primarily used to restrict a JupyterHub o…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.003 (50.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Jupyterhub Oauthenticator — versions < 15.0.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

github.com/jupyterhub/oauthenticator/security/advisories/GHSA-r7v4-jwx9-wx43 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2022-31027?: CVE-2022-31027 is a medium-severity vulnerability in Jupyterhub Oauthenticator, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.2/10. Published 2022-06-06.
How severe is CVE-2022-31027?: Medium severity. CVSS v3 base score is 4.2 out of 10.