---
id: GHSA-gx64-gj6p-pc4c
title: >-
  JupyterLab: Image viewer allows XSS when opening malicious image in new
  browser tab
summary: >-
  JupyterLab: Image viewer allows XSS when opening malicious image in new
  browser tab
severity: high
cwe:
  - CWE-79
vendor: jupyterlab
product: jupyterlab
ecosystem: pip
affected:
  - 'jupyterlab >= 4.6.0, <= 4.6.1'
  - jupyterlab <= 4.5.9
patched:
  - jupyterlab 4.6.2
  - jupyterlab 4.5.10
published: '2026-07-22'
updated: '2026-07-22'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-gx64-gj6p-pc4c'
references:
  - url: >-
      https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-gx64-gj6p-pc4c
  - url: 'https://github.com/jupyterlab/jupyterlab/pull/19184'
  - url: 'https://github.com/jupyterlab/jupyterlab/pull/19185'
  - url: 'https://github.com/jupyterlab/jupyterlab/pull/19186'
  - url: >-
      https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c
  - url: >-
      https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432
  - url: 'https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10'
  - url: 'https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2'
  - url: 'https://github.com/advisories/GHSA-gx64-gj6p-pc4c'
tags:
  - ghsa
  - pip
ingestedAt: '2026-07-23T00:08:38.808Z'
---

## Overview

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`](https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2) and [`v4.5.10`](https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10) contain the patch.

### Workarounds

Disable the image viewer plugin:

```
jupyter labextension disable @jupyterlab/imageviewer-extension:plugin
```

Confirm with:

```
jupyter labextension list
```

## Affected packages

- `jupyterlab >= 4.6.0, <= 4.6.1`
- `jupyterlab <= 4.5.9`

## Remediation

Upgrade to a patched release:

- `jupyterlab 4.6.2`
- `jupyterlab 4.5.10`