---
id: CVE-2026-45492
title: >-
  Improper input validation in Microsoft Edge (Chromium-based) allows an
  unauthorized attacker to bypass a security feature over a network.
summary: >-
  Improper input validation in Microsoft Edge (Chromium-based) allows an
  unauthorized attacker to bypass a security feature over a network.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-20
vendor: microsoft
product: edge_chromium
affected:
  - edge_chromium < 148.0.3967.70
patched:
  - edge_chromium 148.0.3967.70
published: '2026-05-18'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-45492'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45492'
    label: secure@microsoft.com
tags:
  - nvd
epss: 0.00413
epssPercentile: 0.33997
ingestedAt: '2026-10-14T20:53:12.304Z'
---

## Overview

Improper input validation in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.

## Affected

- `edge_chromium < 148.0.3967.70`

## Remediation

Upgrade past the affected range:

- `edge_chromium 148.0.3967.70`