---
id: CVE-2026-87508
title: >-
  Incorrect authorization in Loader in Google Chrome prior to 153.0.8010.36
  allowed a remote attacker to bypass web origin policy via a crafted HTML page
summary: >-
  Incorrect authorization in Loader in Google Chrome prior to 153.0.8010.36
  allowed a remote attacker to bypass web origin policy via a crafted HTML page.
  (Chromium security severity: Medium)
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
cwe:
  - CWE-863
vendor: google
product: chrome
affected:
  - chrome < 153.0.8010.36
patched:
  - chrome 153.0.8010.36
published: '2026-09-09'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T19:16:14.450'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87508'
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/513346220'
    label: chrome-cve-admin@google.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87508.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-87508'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-87508'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-09T17:25:11.260376Z'
epss: 0.00247
epssPercentile: 0.16272
scores:
  nvd: 4.3
  vendor: 8.1
  adp: 4.3
ingestedAt: '2026-09-09T01:17:17.509Z'
---

## Overview

Incorrect authorization in Loader in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

## Affected

- `chrome < 153.0.8010.36`

## Remediation

Upgrade past the affected range:

- `chrome 153.0.8010.36`

## Vendor advisories

- **Red Hat VEX** · updated 2026-09-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87508.json)