jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab
Priority LOW 36CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- Partial Red Hat: 3 fixed, 1 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00737 54th percentileScored 2026-11-07
Fix Partial jupyterlab (jupyterlab): 4.5.10, 4.6.2jupyterlab (PyPI): 4.6.2, 4.5.10Red Hat: 4 advisoriesRed Hat: 3 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| jupyterlab | jupyterlab | before 4.5.10; 4.6.0 to before 4.6.2 | 4.5.10, 4.6.2 | Patch available | CNA |
| — | jupyterlab (PyPI) | 4.6.0 to before 4.6.2 | 4.6.2 | Patch available | GHSA-gx64-gj6p-pc4c |
| — | jupyterlab (PyPI) | before 4.5.10 | 4.5.10 | Patch available | GHSA-gx64-gj6p-pc4c |
- jupyterlab Vendorjupyterlab Affected before 4.5.10; 4.6.0 to before 4.6.2 Fixed in 4.5.10, 4.6.2 Patch available CNA
- jupyterlab (PyPI) Vendor— Affected 4.6.0 to before 4.6.2 Fixed in 4.6.2 Patch available GHSA-gx64-gj6p-pc4c
- jupyterlab (PyPI) Vendor— Affected before 4.5.10 Fixed in 4.5.10 Patch available GHSA-gx64-gj6p-pc4c
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:jupyter:jupyterlab:*:*:*:*:*:*:*:* | — | — | jupyterlab |
- cpe:2.3:a:jupyter:jupyterlab:*:*:*:*:*:*:*:* Versions — — ·jupyterlab
Remediation
- Fix · CNA jupyterlab (jupyterlab) Fixed in 4.5.10, 4.6.2
- Fix · GHSA-gx64-gj6p-pc4c jupyterlab (PyPI) Fixed in 4.6.2 Advisory →
- Fix · GHSA-gx64-gj6p-pc4c jupyterlab (PyPI) Fixed in 4.5.10 Advisory →
Red Hat 4 advisories
- RHSA-2026:87410 Released 2026-10-21 · Red Hat rating CriticalRHOAI 2.25.12 - Red Hat OpenShift AI
- Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-caikit-nlp-rhel9, registry.redhat.io/rhoai/odh-codeflare-operator-rhel9 +47
- RHSA-2026:84734 Released 2026-10-19 · Red Hat rating CriticalRHOAI 3.4.5 - Red Hat OpenShift AI
- Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-ai-gateway-payload-processing-rhel9, registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9 +47
- RHSA-2026:73987 Released 2026-09-30 · Red Hat rating CriticalRHOAI 3.3.7 - Red Hat OpenShift AI
- Red Hat OpenShift AI 3.3 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9, registry.redhat.io/rhoai/odh-data-science-pipelines-argo-argoexec-rhel9 +47
Show 1 more Red Hat advisories
- RHSA-2026:65126 Released 2026-09-08 · Red Hat rating ImportantRHOAI 2.25.11 - Red Hat OpenShift AI
- Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-caikit-tgis-serving-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9 +47
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet |
| Red Hat OpenShift AI 2.25 | Fixed | RHSA-2026:65126, RHSA-2026:87410 |
| Red Hat OpenShift AI 3.3 | Fixed | RHSA-2026:73987 |
| Red Hat OpenShift AI 3.4 | Fixed | RHSA-2026:84734 |
Not affected: 5 products
- Migration Toolkit for Applications 8
- Red Hat OpenShift AI (RHOAI)
- Red Hat OpenShift AI 2.25
- Red Hat OpenShift AI 3.3
- Red Hat OpenShift AI 3.4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-73415
- 2026-10-03 Alias added: GHSA-gx64-gj6p-pc4c
- 2026-10-07 Fix available: RHSA-2026:73987 · Red Hat
- 2026-10-20 Fix available: RHSA-2026:84734 · Red Hat
- 2026-10-20 Fix available: Red Hat OpenShift AI 3.4 · Red Hat
- 2026-10-22 Fix available: RHSA-2026:87410 · Red Hat
- 2026-10-23 Affected versions changed · Red Hat
References
Other 11
- https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-gx64-gj6p-pc4c
- https://github.com/jupyterlab/jupyterlab/pull/19184
- https://github.com/jupyterlab/jupyterlab/pull/19185
- https://github.com/jupyterlab/jupyterlab/pull/19186
- https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999
- https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2c
- https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432
- https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10
- https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2
- https://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1
- https://github.com/jupyterlab/jupyterlab
More jupyterlab vulnerabilities
- TI-2026-32161 Jupyter Enterprise Gateway Has Kubernetes Manifest Injection via Jinja2 Template Rendering CVSS 4.0CRITICAL 10.0
- TI-2026-32160 Jupyter Enterprise Gateway: Jinja2 Template Server Side Template Injection results in Remote Code Execution CVSS 4.0CRITICAL 10.0
- TI-2026-32159 Jupyter Enterprise Gateway: ContainerProcessProxy._enforce_prohibited_ids can be Bypassed CVSS 3.1CRITICAL 9.8
- TI-2024-26623 Remote Code Execution (RCE) vulnerability in jupyterlab extension template `update-integration-tests` GitHub Action CVSS 3.1CRITICAL 10.0
- TI-2026-78983 Path traversal in nbconvert lets crafted notebooks write files CVSS 4.0HIGH 8.8
- TI-2026-39372 JupyterLab Git: Stored XSS leading to RCE CVSS 4.0CRITICAL 9.3
Sources
- CVE-2026-73415 · CVE Program
- CVE-2026-73415 · NVD
- FIRST EPSS
- GHSA-gx64-gj6p-pc4c · GitHub Advisory Database · CC BY 4.0
- CVE-2026-73415 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences