{"cve":"CVE-2026-73627","nvd":{"published":"2026-08-13T12:17:28.043","modified":"2026-09-30T18:18:39.947","status":"Awaiting Analysis","description":"JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass. Two server-side enforcement gaps allow an authenticated user to circumvent administrator lock rules by making direct requests to the /lab/api/plugins endpoint, enabling or disabling plugins that were locked — including child plugins of multi-plugin extensions and plugins locked via the 'lock all' mechanism. This can impact data integrity and bypass hardening or restrictions (e.g., download/upload limits) implemented through locked plugins. Fixed in versions 4.6.2 and 4.5.10.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","score":6.0},"cvss_v3":null,"cwes":["CWE-602"],"references":["https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-h5v5-8746-g7mm","https://www.vulncheck.com/advisories/jupyterlab-plugin-manager-lock-rule-enforcement-bypass"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-73627","score":0.00422,"percentile":0.3623,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-h5v5-8746-g7mm","url":"https://osv.dev/vulnerability/GHSA-h5v5-8746-g7mm","summary":"JupyterLab PluginManager lock-rule enforcement bypass","modified":"2026-10-01T03:56:05.514404364Z","packages":[{"ecosystem":"PyPI","name":"jupyterlab","purl":"pkg:pypi/jupyterlab","ranges":[">=4.6.0 <4.6.2"],"fixed":["4.6.2"]},{"ecosystem":"PyPI","name":"jupyterlab","purl":"pkg:pypi/jupyterlab","ranges":[">=4.1.0 <4.5.10"],"fixed":["4.5.10"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}