Description

Unhead is a document head and template manager. Prior to 2.1.11, useHeadSafe() can be bypassed to inject arbitrary HTML attributes, including event handlers, into SSR-rendered <head> tags. This is the composable that Nuxt docs recommend for safely handling user-generated content. The acceptDataAttrs function (safe.ts, line 16-20) allows any property key starting with data- through to the final HTML. It only checks the prefix, not whether the key contains spaces or other characters that break HTML attribute parsing. This vulnerability is fixed in 2.1.11.

INFO

Published Date :

2026-03-12T17:18:20.452Z

Last Modified :

2026-03-13T16:26:51.670Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-31860 vulnerability.

Vendors Products
Unjs
  • Unhead
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31860.

URL Resource
https://github.com/unjs/unhead/security/advisories/GHSA-g5xx-pwrp-g3fv cve-icon cve-icon cve-icon
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