PyPI/jupyterlite-core CVE-2026-102830: medium 6.8, EPSS 0.26%

JupyterLab: Cross-site scripting (XSS) in JupyterLab via crafted language package (jupyterlab.json)

Action: Upgrade jupyterlite-core to 0.8.4 or later.

pip install jupyterlite-core==0.8.4

Affected

Fixed versions

Sources

• osv: PYSEC-2026-4059
• https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-3jqq-pw4j-pqcj
• https://nvd.nist.gov/vuln/detail/CVE-2026-102830
• https://github.com/jupyterlab/jupyterlab/commit/985a3223cd77fd4f991cd90066342a90711d70f6
• https://github.com/jupyterlab/jupyterlab/commit/de324ae91346c713c4f5e5485f97b6e914e0f774
• https://github.com/jupyterlab/jupyterlab/commit/f9de43dc565a1118120d466117f877a189a4ce90
• https://github.com/jupyterlab/jupyterlab
• https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11
• https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4
• https://pypi.org/project/jupyterlite-core
• https://github.com/advisories/GHSA-3jqq-pw4j-pqcj

CVE-2026-102830 · published 2026-10-01T16:44:34.781942Z · modified 2026-10-01T17:55:38.293412379Z · JSON