CVE-2026-73415

UNKNOWN 0.0

jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.10 and 4.6.2, in packages/imageviewer/src/widget.ts, JupyterLab's ImageViewer uses URL.createObjectURL for a specially crafted SVG image and revokes the blob URL too early, allowing the image to retain an executable same-origin context when it is opened through the image viewer and then opened in a new browser tab. The resulting cross-site scripting can be used to execute arbitrary code on the JupyterLab server. This issue is fixed in versions 4.5.10 and 4.6.2.

CWE	CWE-79
Vendor	jupyterlab
Product	jupyterlab
Published	Aug 12, 2026
Last Updated	Aug 12, 2026

Stay Ahead of the Next One

Get instant alerts for jupyterlab jupyterlab

Be the first to know when new unknown vulnerabilities affecting jupyterlab jupyterlab are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

Affected Versions

jupyterlab / jupyterlab

< 4.5.10 >= 4.6.0, < 4.6.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗