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MEDIUM · 5.7

CVE-2026-21529

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

Vulnerability 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 Score

5.7

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftAzure Hdinsight< 5.1

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2026-21529?

CVE-2026-21529 is a vulnerability with a CVSS score of 5.7 (MEDIUM). Improper neutralization of input during web page generation ('cross-site scripting') in Azure HDInsights allows an authorized attacker to perform spoofing over a network.

How severe is CVE-2026-21529?

CVE-2026-21529 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21529?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Azure Hdinsight.