{"id":"CVE-2026-73415","aliases":["BIT-jupyterlab-2026-73415","GHSA-gx64-gj6p-pc4c","PYSEC-2026-3671"],"url":"https://o3.security/vulnerability/CVE-2026-73415","summary":"jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab","details":"jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.10 and 4.6.2, in packages/imageviewer/src/widget.ts, JupyterLab's ImageViewer uses URL.createObjectURL for a specially crafted SVG image and revokes the blob URL too early, allowing the image to retain an executable same-origin context when it is opened through the image viewer and then opened in a new browser tab. The resulting cross-site scripting can be used to execute arbitrary code on the JupyterLab server. This issue is fixed in versions 4.5.10 and 4.6.2.","published":"2026-08-12T19:54:00.581Z","modified":"2026-09-11T03:48:39.582668627Z","cvss":null,"epss":{"score":0.00574,"percentile":0.45887,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"jupyterlab","fixedVersion":"4.6.2"},{"ecosystem":"PyPI","name":"jupyterlab","fixedVersion":"4.5.10"}],"fix":{"url":"https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999","label":"jupyterlab/jupyterlab@9365f02"},"references":[{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10"},{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2"},{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73415.json"},{"type":"ADVISORY","url":"https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-gx64-gj6p-pc4c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73415"},{"type":"FIX","url":"https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999"},{"type":"FIX","url":"https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c"},{"type":"FIX","url":"https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432"},{"type":"FIX","url":"https://github.com/jupyterlab/jupyterlab/pull/19184"},{"type":"FIX","url":"https://github.com/jupyterlab/jupyterlab/pull/19185"},{"type":"FIX","url":"https://github.com/jupyterlab/jupyterlab/pull/19186"},{"type":"PACKAGE","url":"https://github.com/jupyterlab/jupyterlab"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-11T03:48:39.582668627Z"}}