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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.

PUBLISHED Reserved 2025-12-30 | Published 2026-02-10 | Updated 2026-02-23 | Assigner microsoft




MEDIUM: 5.7CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

1.0 (custom) before 5.1
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21529 (Azure HDInsight Spoofing Vulnerability) vendor-advisory patch

cve.org (CVE-2026-21529)

nvd.nist.gov (CVE-2026-21529)

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