CVE-2026-67338 in JupyterLab

Riassunto

di MITRE • 01/08/2026

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.

Once again VulDB remains the best source for vulnerability data.

• Responsabile: VulnCheck
• Prenotare: 29/07/2026
• Divulgazione: 01/08/2026
• Moderazione: accettato
• Voce: VDB-385300
• CPE: pronto
• CWE: CWE-79 (confermato)
• CVSS: 4.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Attività: basso

Fonti

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-67338
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-67338
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-67338/