CVE-2026-21529

CWE-79 — Cross-site Scripting (XSS)CWE-502 — Deserialization of Untrusted Data5 documents5 sources
Severity
5.4MEDIUM
EPSS
0.0%
top 87.91%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Microsoft Azure Hdinsight
Timeline
PublishedFeb 10
Latest updateApr 13

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 vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:HExploitability: 2.1 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5microsoft/azure_hdinsight1.0 — 5.1

🔴Vulnerability Details

2
GHSA
GHSA-8754-7pfj-x7mr: Improper neutralization of input during web page generation ('cross-site scripting') in Azure HDInsights allows an authorized attacker to perform spoo↗2026-02-10
▶
CVEList
Azure HDInsight Spoofing Vulnerability↗2026-02-10
▶

📋Vendor Advisories

2
CISA
Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability↗2026-04-13
▶
Microsoft
Azure HDInsight Spoofing Vulnerability↗2026-02-10
▶
CVE-2026-21529 (MEDIUM CVSS 5.4) | Improper neutralization of input du | cvebase.io