UBUNTU-CVE-2026-73415
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.
UBUNTU-CVE-2026-73415
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:UBUNTU-CVE-2026-73415
jupyterlab
Source reference: /affected/0/package/name
- Affected versions
- 4.0.11+ds1+~cs11.25.27-7
Source reference:
/affected/0/versions4.0.11+ds1+~cs11.25.27-8Source reference:
/affected/0/versions4.0.11+ds1+~cs11.25.27-9Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jupyterlab",
"purl": "pkg:deb/ubuntu/jupyterlab?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"4.0.11+ds1+~cs11.25.27-7",
"4.0.11+ds1+~cs11.25.27-8",
"4.0.11+ds1+~cs11.25.27-9"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73415.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jupyterlab",
"binary_version": "4.0.11+ds1+~cs11.25.27-9"
}
]
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #51961 · Revision 1
- Added to Heist Feed
- Publisher date