CVE-2026-31860

MEDIUM

6.1

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung6.1

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionREQUIRED

Veroffentlicht3/12/2026

Zuletzt geandert3/16/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

unjs:unhead

Schwachen (CWE)

CWE-79

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.