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CVE-2024-39700

critical

JupyterLab extension template is a `copier` template for JupyterLab extensions.

Vendor / product: Jupyter — jupyterlab

JupyterLab extension template is a `copier` template for JupyterLab extensions. Repositories created using this template with `test` option include `update-integration-tests.yml` workflow which has an RCE vulnerability. Extension authors hosting their code on GitHub are urged to upgrade the template to the latest version. Users who made changes to `update-integration-tests.yml`, accept overwriting of this file and re-apply your changes later. Users may wish to temporarily disable GitHub Actions while working on the upgrade. We recommend rebasing all open pull requests from untrusted users as actions may run using the version from the `main` branch at the time when the pull request was created. Users who are upgrading from template version prior to 4.3.0 may wish to leave out proposed changes to the release workflow for now as it requires additional configuration.

CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2024-07-16 18:15
Modified: 2026-11-03 22:17
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-11-03 22:24 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

jupyter / jupyterlab <4.3.0

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/jupyterlab/extension-template/security/advisories/GHSA-45gq-v5wm-82wg
Vendor advisory: https://github.com/jupyterlab/extension-template/security/advisories/GHSA-45gq-v5wm-82wg
Patch / mitigation: https://github.com/jupyterlab/extension-template/commit/035e78c1c65bcedee97c95bb683abe59c96bc4e6
Patch / mitigation: https://github.com/jupyterlab/extension-template/commit/035e78c1c65bcedee97c95bb683abe59c96bc4e6

References

Data sources

NVD CVE API 2.0 — fetched 2026-11-03 22:24 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores

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