Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c0
- https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c9030
- https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf
- https://github.com/jupyterlab/jupyterlab/pull/19184
- https://github.com/jupyterlab/jupyterlab/pull/19185
- https://github.com/jupyterlab/jupyterlab/pull/19186
- https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10
- https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2
- https://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1
- https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-gx64-gj6p-pc4c
FAQ
What is CVE-2026-73415?
CVE-2026-73415 is a documented vulnerability. 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, Jupyte...
How severe is CVE-2026-73415?
CVSS scoring is not yet available for CVE-2026-73415. Check NVD for updates.
Is there a patch for CVE-2026-73415?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.