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PyPI/jupyter-server CVE-2026-35397: high 8.8, EPSS 0.67%

Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, a path traversal vulnerability in the REST API allows an authenticated user to escape the configured root_di

Action: Upgrade jupyter-server to 2.18.0 or later.

pip install jupyter-server==2.18.0

Affected

introducedfixedlast affected
02.18.0-

Fixed versions

2.18.0

Sources

CVE-2026-35397 · published · modified · JSON