What is CVE-2021-41247?

CVE-2021-41247 is a low-severity vulnerability in 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 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: 0.002 (43.8th 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

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

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

github.com/jupyterhub/jupyterhub/security/advisories/GHSA-cw7p-q79f-m2v7 (x_refsource_CONFIRM)
github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-41247?: CVE-2021-41247 is a low-severity vulnerability in 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.