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Vulnerability record · CVE-2026-21529 · published 10 February 2026

CVE-2026-21529: Microsoft azure hdinsight cross-site scripting vulnerability

Microsoft · Azure Hdinsight

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

5.4 CVSS 3.1 Medium EPSS 0.65% · top 51.1% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21529 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-21529), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.