CVE-2026-21529
Analyzed Analyzed - Analysis Complete

Cross-Site Scripting in Azure HDInsights Enables Network Spoofing

Publication date: 2026-02-10

Last updated on: 2026-02-11

Assigner: Microsoft Corporation

Description
Improper neutralization of input during web page generation ('cross-site scripting') in Azure HDInsights allows an authorized attacker to perform spoofing over a network.

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Meta Information

Published
2026-02-10
Last Modified
2026-02-11
Generated
2026-07-06
AI Q&A
2026-02-10
EPSS Evaluated
2026-07-05
NVD
CVE-2026-21529
EUVD
EUVD-2026-7335

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft azure_hdinsight to 5.1 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a cross-site scripting (XSS) issue in Azure HDInsights caused by improper neutralization of input during web page generation. It allows an authorized attacker to perform spoofing over a network.

Detection Guidance

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Impact Analysis

The vulnerability can allow an authorized attacker to perform spoofing attacks over a network, potentially misleading users or systems by impersonating legitimate entities. Although it does not impact confidentiality or integrity, it can cause availability issues.

Compliance Impact

I don't know

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