---
id: CVE-2026-8951
title: Spoofing issue in the Toolbar component in Firefox for Android
summary: >-
  Spoofing issue in the Toolbar component in Firefox for Android. This
  vulnerability was fixed in Firefox 151.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'
cwe:
  - CWE-290
vendor: mozilla
product: firefox
affected:
  - firefox < 151.0.0
patched:
  - firefox 151.0.0
published: '2026-05-19'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-8951'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=2018513'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-46/'
    label: security@mozilla.org
tags:
  - nvd
epss: 0.00275
epssPercentile: 0.18528
ingestedAt: '2026-10-14T20:53:12.315Z'
---

## Overview

Spoofing issue in the Toolbar component in Firefox for Android. This vulnerability was fixed in Firefox 151.

## Affected

- `firefox < 151.0.0`

## Remediation

Upgrade past the affected range:

- `firefox 151.0.0`