jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab
Summary
| CVE | CVE-2026-73415 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-12 20:17:56 UTC |
| Updated | 2026-08-12 21:17:40 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v4.0 7.5 HIGH from [email protected]
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
Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 7.5 | HIGH | 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/C... |
| 4.0 | CNA | DECLARED | 7.5 | HIGH | 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 |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighAttack Requirements
NonePrivileges Required
NoneUser Interaction
ActiveConfidentiality
HighIntegrity
HighAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS: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
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Jupyterlab | Jupyterlab | affected < 4.5.10 | Not specified |
| CNA | Jupyterlab | Jupyterlab | affected >= 4.6.0, < 4.6.2 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c9030... | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/security/advisories/GHSA-gx64-gj6p-pc4c | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf... | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/pull/19186 | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1 | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c0... | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/pull/19184 | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/pull/19185 | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2 | [email protected] | github.com | |
| github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10 | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.