---
id: CVE-2026-87580
title: >-
  Incorrect authorization in WebAppInstalls in Google Chrome prior to
  153.0.8010.36 allowed a remote attacker who had compromised the renderer
  process and leveraged social engineering to bypass site isolation via a
  crafted HTML page
summary: >-
  Incorrect authorization in WebAppInstalls in Google Chrome prior to
  153.0.8010.36 allowed a remote attacker who had compromised the renderer
  process and leveraged social engineering to bypass site isolation via a
  crafted HTML page. (Chro…
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-863
vendor: google
product: chrome
affected:
  - chrome < 153.0.8010.36
patched:
  - chrome 153.0.8010.36
published: '2026-09-09'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T14:39:26.440'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87580'
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/502986244'
    label: chrome-cve-admin@google.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-87580.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-87580'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-87580'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T18:31:51.907039Z'
epss: 0.00213
epssPercentile: 0.11944
scores:
  nvd: 6.5
  vendor: 5.4
  adp: 6.5
ingestedAt: '2026-09-09T01:17:17.510Z'
---

## Overview

Incorrect authorization in WebAppInstalls in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass site isolation 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-2026-87580.json)