{"id":"BIT-jupyterlab-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.","aliases":["CVE-2026-73415","GHSA-gx64-gj6p-pc4c","PYSEC-2026-3671"],"modified":"2026-08-19T12:55:38.161986612Z","published":"2026-08-18T10:05:56.538Z","database_specific":{"cpes":["cpe:2.3:a:jupyter:jupyterlab:*:*:*:*:*:python:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999"},{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c"},{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432"},{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/pull/19184"},{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/pull/19185"},{"type":"WEB","url":"https://github.com/jupyterlab/jupyterlab/pull/19186"},{"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":"WEB","url":"https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-gx64-gj6p-pc4c"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73415"}],"affected":[{"package":{"name":"jupyterlab","ecosystem":"Bitnami","purl":"pkg:bitnami/jupyterlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.5.10"},{"introduced":"4.6.0"},{"fixed":"4.6.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/jupyterlab/BIT-jupyterlab-2026-73415.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}