CVE Watch1 ago 2026

CVE-2026-67338

JupyterLab before 4.5.9 contains a stored cross-site scripting vulnerability in the Extension Manager that fails to validate URI protocols i

CVSS

6.1

Medio

EPSS

—

KEV

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Exploit Today

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0-100

Publicado: 1 ago 2026 · Última mod.: 1 ago 2026 · CWE-84

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

JupyterLab before 4.5.9 contains a stored cross-site scripting vulnerability in the Extension Manager that fails to validate URI protocols in package metadata URLs. Attackers can publish malicious PyPI packages with javascript: URLs in project metadata that execute arbitrary JavaScript in the JupyterLab origin when users click the extension name.

Referencias oficiales

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