{"action":"Upgrade jupyterlab to 4.5.9 or later.","affected":[{"fixed":"4.5.9","introduced":"0"}],"component":"jupyterlab","cve_ids":["CVE-2026-67338"],"ecosystem":"PyPI","epss":0.00305,"exploited":false,"fixed_versions":["4.5.9"],"ghsa_id":"GHSA-vmhf-c436-hxj4","id":"tcs_01M5KG0EDX75NCVQSYE22Y3ANX","modified_at":"2026-10-14T11:11:02.670615521Z","published_at":"2026-06-19T15:11:17Z","references":["https://osv.dev/vulnerability/GHSA-vmhf-c436-hxj4","https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-vmhf-c436-hxj4","https://github.com/jupyterlab/jupyterlab/commit/4e61e07d0a91145b53fbf96ac74b0387f6bc51f6","https://github.com/jupyterlab/jupyterlab/commit/d5d961f6e10a6442dddbf94d9a976b3897055a12","https://github.com/jupyterlab/jupyterlab","https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.9"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"GHSA-vmhf-c436-hxj4","url":"https://osv.dev/vulnerability/GHSA-vmhf-c436-hxj4"},{"source":"nvd","source_id":"CVE-2026-67338","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67338"}],"summary":"JupyterLab: Stored XSS in extension manager through package metadata unsanitized URI protocol"}