CVE-2026-21529

MEDIUM

Azure HDInsight < 5.1 - Cross-Site Scripting

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.7
EPSS 0.0005
EPSS Percentile 14.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (2)
Microsoft/Azure HDInsight 1.0 - 5.1
microsoft/azure_hdinsight < 5.1
Published Feb 10, 2026
Tracked Since Feb 18, 2026