JupyterLab: Image viewer allows XSS when opening malicious image in new browser tab
JupyterLab's image viewer allows for cross-site scripting (XSS) when a specially-crafted image file is opened through the image viewer and then opened in a new tab. This XSS issue can be used to cause remote code execution (RCE) on the JupyterLab server.
Impact
This vulnerability allows for arbitrary code execution.
Patches
JupyterLab v4.6.2 and v4.5.10 contain the patch.
Workarounds
Disable the image viewer plugin:
jupyter labextension disable @jupyterlab/imageviewer-extension:pluginConfirm with:
jupyter labextension listAffected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | jupyterlab | >= 4.6.0, < 4.6.2, < 4.5.10 | 4.6.2, 4.5.10 |
References
- https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-gx64-gj6p-pc4c
- 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/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c
- https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432
- https://github.com/jupyterlab/jupyterlab
- https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10
- https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2
- https://pypi.org/project/jupyterlab
- https://github.com/advisories/GHSA-gx64-gj6p-pc4c
- https://nvd.nist.gov/vuln/detail/CVE-2026-73415
- CVSS vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-79- Platform
- Python (PyPI)
- Package
jupyterlab- Disclosed
- 22.07.2026
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-3671 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-gx64-gj6p-pc4c - CC BY 4.0
Vulnerability history: jupyterlab
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 19
- First → latest
- 08.2021 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 8
- Medium 8
- Low 2
Disclosures per year
- 2021: 1
- 2022: 0
- 2023: 0
- 2024: 4
- 2025: 1
- 2026: 13
-
JupyterLab: Image viewer allows XSS when opening malicious image in new browser tab this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.