What is CVE-2021-41247?

CVE-2021-41247 is a low-severity vulnerability in Jupyter Jupyterhub, classified under Insufficient Session Expiration. CVSS score: 3.5/10. Published 2021-11-04.

How severe is CVE-2021-41247?

Low severity. CVSS v3 base score is 3.5 out of 10.

Vulnerability in Jupyter Jupyterhub

CVE-2021-41247

JupyterHub is an open source multi-user server for Jupyter notebooks. In affected versions users who have multiple JupyterLab tabs open in the same browser session, may see incomplete logout from the single-user server, as fresh credential…

EPSS: 0.008 (51.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.

Affected products

Jupyter Jupyterhub
Jupyterhub — versions >= 1.0.0, < 1.5.0 - jupyterhub (pip), < 1.2.0 - jupyterhub (helm)

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-41247?: CVE-2021-41247 is a low-severity vulnerability in Jupyter Jupyterhub, classified under Insufficient Session Expiration. CVSS score: 3.5/10. Published 2021-11-04.
How severe is CVE-2021-41247?: Low severity. CVSS v3 base score is 3.5 out of 10.