CVE-2026-21529CWE-79

Azure HDInsight Spoofing Vulnerability

Medium · published February 10, 2026

CVSS v3.1
5.7
EPSS
1%
Percentile
51.1
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
5.7 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00664 · 51.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-10T17:51Z
EPSS history
Timeline
  • 10 FEB 17:51Z
    Azure HDInsight Spoofing Vulnerability
    cvelistv5