Azure
CVE-2026-21529
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Improper neutralization of input during web page generation ('cross-site scripting') in Azure HDInsights allows an authorized attacker to perform spoofing over a network.
AnalysisAI
Azure HDInsight contains a cross-site scripting (XSS) vulnerability in web page generation that allows authenticated attackers to conduct spoofing attacks over the network. An attacker with valid credentials and user interaction can exploit this weakness to manipulate web content and deceive users. No patch is currently available for this issue.
Technical ContextAI
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects 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.
RemediationAI
Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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