Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-73415— jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab

Quick assessment

Affected
jupyterlab jupyterlab
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

JupyterLab jupyterlab是JupyterLab基金会的一款Web应用开发框架。 jupyterlab 4.5.10之前版本和4.6.0至4.6.2之前版本存在跨站脚本漏洞，该漏洞源于packages/imageviewer/src/widget.ts文件中ImageViewer对特制SVG图像使用URL.createObjectURL并过早撤销blob URL，导致图像保留可执行同源环境，可能造成跨站脚本攻击，进而导致在JupyterLab服务器上执行任意代码。

CVSS 7.5 · High EPSS 0.57% · P45

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 2

VendorProduct Version RangeStatus
jupyterlab jupyterlab < 4.5.10 affected
>= 4.6.0, < 4.6.2 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-73415

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
jupyterlab: Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
jupyterlab 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JupyterLab jupyterlab是JupyterLab基金会的一款Web应用开发框架。 jupyterlab 4.5.10之前版本和4.6.0至4.6.2之前版本存在跨站脚本漏洞，该漏洞源于packages/imageviewer/src/widget.ts文件中ImageViewer对特制SVG图像使用URL.createObjectURL并过早撤销blob URL，导致图像保留可执行同源环境，可能造成跨站脚本攻击，进而导致在JupyterLab服务器上执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jupyterlab jupyterlab < 4.5.10 -

II. Public POCs for CVE-2026-73415

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7575 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-73415

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-73415 (5)

Vendor Advisories for CVE-2026-73415 (1)

Vendor Pages for CVE-2026-73415 (2)

IV. Related Vulnerabilities

Same product: jupyterlab
Same vendor: jupyterlab
Same weakness: CWE-79

V. Comments for CVE-2026-73415

No comments yet

Leave a comment