BIT-JUPYTERLAB-2026-73417 JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings...

BIT-JUPYTERLAB-2026-73416 jupyterlab: PyPI extension blocklist package-name canonicalization bypass

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.0 until 4.5.10 and 4.6.2, in jupyterlab/extensions/manager.py and jupyterlab/extensions/pypi.py, JupyterLab's PyPI extension manager enforces...

BIT-JUPYTERLAB-2026-73415 jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab

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 blo...

CVE-2026-73626

A flaw was found in JupyterLab where a missing 'await' in the PyPIExtensionManager.install function could lead to an allowlist/blocklist enforcement gap. This vulnerability allows direct callers of install to bypass security checks, potentially enabling the installation of unauthorized extensions...

CVE-2026-73627

A flaw was found in JupyterLab. An authenticated user can bypass administrator lock rules in the plugin manager by making direct requests to the /lab/api/plugins endpoint. This allows them to enable or disable plugins that were locked, including child plugins and those locked via the 'lock all'...

CVE-2026-73415

A flaw was found in JupyterLab. The ImageViewer component improperly handles specially crafted SVG images by revoking a blob URL too early. This allows a remote attacker to exploit a cross-site scripting XSS vulnerability when a malicious image is opened through the image viewer and subsequently ...

CVE-2026-73416

A flaw was found in jupyterlab. The PyPI Python Package Index extension manager uses a custom normalization process for package names that is weaker than the official PyPI canonicalization. This allows an authenticated user to bypass blocklist restrictions by using an alternative spelling of a...

CVE-2026-73417

A flaw was found in JupyterLab. Improper validation of sideBySideLeftMarginOverride and sideBySideRightMarginOverride settings within the overrides.json file allows for cross-site scripting XSS. An attacker can exploit this by convincing a user to import a specially crafted settings file, or by...

Linux Distros Unpatched Vulnerability : CVE-2026-73417

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6....

Linux Distros Unpatched Vulnerability : CVE-2026-73416

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.0 until 4.5.10 and 4.6....

Linux Distros Unpatched Vulnerability : CVE-2026-73626

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - JupyterLab versions =4.6.0,=4.6.1 and =4.5.9 contain an allowlist/blocklist enforcement gap in PyPIExtensionManager.install. A missing 'await' caused the...

Linux Distros Unpatched Vulnerability : CVE-2026-73627

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - JupyterLab pip package 'jupyterlab' versions =4.1.0,=4.6.0,=4.6.1 contain a plugin manager lock-rule enforcement bypass. Two server-side enforcement gaps allow ...

DEBIAN-CVE-2026-73417

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings...

CVE-2026-73417

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings...

DEBIAN-CVE-2026-73416

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.0 until 4.5.10 and 4.6.2, in jupyterlab/extensions/manager.py and jupyterlab/extensions/pypi.py, JupyterLab's PyPI extension manager enforces...

CVE-2026-73416

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.0 until 4.5.10 and 4.6.2, in jupyterlab/extensions/manager.py and jupyterlab/extensions/pypi.py, JupyterLab's PyPI extension manager enforces...

UBUNTU-CVE-2026-73417

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings...

UBUNTU-CVE-2026-73416

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.0 until 4.5.10 and 4.6.2, in jupyterlab/extensions/manager.py and jupyterlab/extensions/pypi.py, JupyterLab's PyPI extension manager enforces...

CVE-2026-73417

Summary: CVE-2026-73417 affects JupyterLab 3.3.0 through 4.5.10 and 4.6.2 where the Settings Editor’s overrides.json support allows unvalidated content to be inserted into style, enabling code execution instead of display changes via crafted settings. The vulnerability arises from insufficient va...

CVE-2026-73417 JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings...