JU
Product
Jupyterlab
by Jupyter · last CVE May 13, 2026
8
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 3High 1Medium 4Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-42266
8.8
6%
May 13
JupyterLab has an Extension Manager API/GUI Policy Discrepancy allowing 3rd party (malicious) extensions install via POST request.
Affected: 4.0.0 before 4.5.7
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