GO-2026-5030
Invoking duplicate attributes can cause XSS in golang.org/x/net/html
At a glance
- Published
- Updated
- CVE
- CVE-2026-27136
Description
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.
Affected packages
| Package | Versions |
|---|---|
| Go · golang.org/x/net | introduced 0, fixed 0.55.0 |
References
- https://go.dev/issue/79575 REPORT
- https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8 WEB
- https://go.dev/cl/781685 FIX
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — Go Vulnerability Database |