CVE-2026-42502

Invoking incorrect handling of HTML elements in foreign content in golang.org/x/net/html

Medium · published May 22, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
12.2
In the wild
Unconfirmed
What it is

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00223 · 12.2th percentile
Published
2026-05-22T15:01Z
EPSS history
Timeline
  • 22 MAY 15:01Z
    Invoking incorrect handling of HTML elements in foreign content in golang.org/x/net/html
    cvelistv5