CVE-2026-31860

MEDIUM

6.1

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.16.1

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioREQUIRED

Publicado3/12/2026

Ultima modificacao3/16/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

unjs:unhead

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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