---
id: CVE-2026-84357
title: >-
  Improper input validation in Omnibox in Google Chrome prior to 152.0.7977.75
  allowed a remote attacker leveraging social engineering to bypass web origin
  policy via crafted network traffic
summary: >-
  Improper input validation in Omnibox in Google Chrome prior to 152.0.7977.75
  allowed a remote attacker leveraging social engineering to bypass web origin
  policy via crafted network traffic. (Chromium security severity: High)
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'
cvssSource: adp
cwe:
  - CWE-20
vendor: Google
product: Chrome
affected:
  - Chrome >= 152.0.7977.75 < 152.0.7977.75
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-02T18:42:20.307587Z'
published: '2026-09-01'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T19:05:34.309Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-84357'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop.html
  - url: 'https://issues.chromium.org/issues/523208474'
tags:
  - cve.org
epss: 0.00274
epssPercentile: 0.17627
ingestedAt: '2026-09-17T19:26:25.325Z'
---

## Overview

Improper input validation in Omnibox in Google Chrome prior to 152.0.7977.75 allowed a remote attacker leveraging social engineering to bypass web origin policy via crafted network traffic. (Chromium security severity: High)

## Affected

- `Chrome >= 152.0.7977.75 < 152.0.7977.75`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.