---
id: CVE-2026-87608
title: >-
  Improper certificate validation in FedCM in Google Chrome prior to
  153.0.8010.36 allowed a remote attacker leveraging social engineering to
  bypass web origin policy via crafted network traffic
summary: >-
  Improper certificate validation in FedCM in Google Chrome prior to
  153.0.8010.36 allowed a remote attacker leveraging social engineering to
  bypass web origin policy via crafted network traffic. (Chromium security
  severity: Low)
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-295
vendor: google
product: chrome
affected:
  - chrome < 153.0.8010.36
patched:
  - chrome 153.0.8010.36
published: '2026-09-09'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:43:36.733'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87608'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html
    label: chrome-cve-admin@google.com
  - url: 'https://issues.chromium.org/issues/540072282'
    label: chrome-cve-admin@google.com
tags:
  - nvd
  - cve.org
epss: 0.00206
epssPercentile: 0.1103
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-14T12:52:32.766774Z'
ingestedAt: '2026-09-09T01:17:17.505Z'
---

## Overview

Improper certificate validation in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via crafted network traffic. (Chromium security severity: Low)

## Affected

- `chrome < 153.0.8010.36`

## Remediation

Upgrade past the affected range:

- `chrome 153.0.8010.36`