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CVE-2026-44727

🗓️ 22 Jun 2026 19:56:56Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 27 Views🌐 WEB

CVE-2026-44727: Jupyter Server stored XSS via nbconvert handlers from missing sandbox CSP; fixed in 2.20.

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Detection
Affected
Refs
Paths
NVD
Vulners
Node
[
  {
    "vendor": "jupyter-server",
    "product": "jupyter_server",
    "versions": [
      {
        "version": "< 2.20",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
display_datanested/api/*Stored XSS via nbconvert HTML payload rendered by Jupyter Server nbconvert HTMLExporter's output (display_data) enabling cross-site scripting and potential kernel RCE; affects endpoints under /api/*.CWE-79CWE-1021

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30 Jun 2026 03:20Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.4 - 9
CVSS 49.3
EPSS0.00227
SSVC
27