What is CVE-2026-123808?

CVE-2026-123808 is a medium-severity vulnerability in Nuxt Ui, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-11-09.

How severe is CVE-2026-123808?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in Nuxt Ui

CVE-2026-123808

Nuxt UI is an intuitive Vue UI library powered by Reka UI and Tailwind CSS. Prior to 4.8.1, the server-rendered form element produced by UForm in src/runtime/components/Form.vue omits the method and action attributes and relies solely on the hydrated @submit.prevent handler to stop native submission. UAuthForm composes UForm and can render named credential fields, including an input with type password, inside the same markup. If a user submits before Vue hydration completes, or when the client bundle is blocked or unavailable, the browser performs its default GET submission and serializes the named fields into the current URL query string. The credentials can then appear in the address bar, browser history, reverse-proxy, CDN, or WAF request logs, and Referer headers sent with same-origin subresource requests. This issue is fixed in version 4.8.1.

Vulnerability class: Information Disclosure

Published 2026-11-09.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Nuxt Ui — versions < 4.8.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-123808?: CVE-2026-123808 is a medium-severity vulnerability in Nuxt Ui, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-11-09.
How severe is CVE-2026-123808?: Medium severity. CVSS v3 base score is 5.3 out of 10.