Cross-site Scripting (XSS) Affecting mageai package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.44% (37th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-MAGEAI-17951825
  • published12 Jul 2026
  • disclosed22 Jun 2026

Introduced: 22 Jun 2026

CVE-2026-44727  (opens in a new tab)
CWE-79  (opens in a new tab)
CWE-1021  (opens in a new tab)

How to fix?

There is no fixed version for Minimos:latest mageai.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mageai package and not the mageai package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Jupyter Server is the backend for Jupyter web applications. Prior to 2.20, the nbconvert HTTP handlers in jupyter_server render user-authored notebook HTML under the Jupyter origin without a sandbox directive in their Content-Security-Policy. Combined with nbconvert.HTMLExporter's default non-sanitizing behavior, a notebook carrying an HTML payload in a display_data output triggers stored XSS with cookie access, full /api/* authority, and kernel RCE. This vulnerability is fixed in 2.20.

CVSS Base Scores

version 3.1