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.
https://pkg.go.dev/vuln/GO-2026-5029
Published: 2026-05-22
Updated: 2026-07-23
Named Vulnerability: GO-2026-5029Named Vulnerability: GHSA-w9p8-pvxh-rxpj
Base Score: 9.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N
Severity: High
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
EPSS: 0.00223