---
cve: "CVE-2026-73415"
severity: "HIGH"
cvss: 7.5
epss: "57%"
vendor: "jupyterlab"
kev: false
exploited: false
published: "2026-08-12 20:17:56"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T08:41:02+02:00"
---

# CVE-2026-73415

> 7.5 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- af5f5b3c779f6d7170c1124f5818807fa18f3f63 (Commit)
- 150ba51f1c840edc399597a86a6fc3ed24ef60be (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73415) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_