JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)

Date Jul 22, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product PyPI · jupyterlab

High-risk advisory

Summary

JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)

Why it matters

GitHub has published a reviewed security advisory for jupyterlab. Prioritize it with other application dependency updates.

Operator check

Check whether jupyterlab is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.6.

Sources

GitHub Advisory GHSA-pppj-hq3g-57pj Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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