CVE-2026-31860

MEDIUM

6.1

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.16.1

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioREQUIRED

Publicado3/12/2026

Ultima modificacion3/16/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

unjs:unhead

Debilidades (CWE)

CWE-79

Referencias

https://github.com/unjs/unhead/security/advisories/GHSA-g5xx-pwrp-g3fv(security-advisories@github.com)

https://github.com/unjs/unhead/security/advisories/GHSA-g5xx-pwrp-g3fv(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlaciones IOC

Sin correlaciones registradas

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