CVE-2026-102530: critical vulnerability in jupyterlab-desktop
JupyterLab Desktop: Cross-Site Scripting (XSS) leading to Remote Code Execution on Connect URL
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.4%
JupyterLab Desktop is the cross-platform desktop application for JupyterLab. Prior to 4.6.2-1, remote-server URLs were inserted into the server-selection dialog and Welcome view without safe encoding. An attacker who convinces a user to submit a crafted URL can execute JavaScript in the Welcome renderer and abuse its privileged IPC bridge to execute arbitrary code with the user’s privileges. The Welcome view also unsafely renders RSS news-feed titles; exploitation through this separate input path requires control over content delivered through the application’s Jupyter Blog feed or its cached feed data, rather than submission of a remote-server URL. This issue affects all supported platforms and is fixed in version 4.6.2-1.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Affected products
jupyterlab · jupyterlab-desktopRelated CVEs — jupyterlab-desktop
In the same product, most dangerous first.
CVE-2026-86044CRITICALJupyterLab Desktop: One-Click Jupyter Server Token Leak leading to Remote Code ExecutionEPSS 0.3%CVE-2025-55002MEDIUMJupyterLab Desktop: TCC Bypass via Misconfigured Node FusesEPSS 0.2%CVE-2025-54991MEDIUMJupyterLab Desktop: TCC Bypass via Insecure Entitlements (macOS)EPSS 0.2%