CVE-2026-87469: Improper input validation in Google Chrome
Description
Improper input validation in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy into a privileged page via crafted network traffic. (Chromium security severity: Low)
CVSS v3.1
4.3medium
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome's Extensions component involves improper input validation that enables a remote attacker to bypass the web origin policy and gain access to privileged pages through specially crafted network traffic. The issue affects versions prior to 153.0.8010.36. The CVSS 3.1 base score is 4.3, indicating medium severity with network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality impact, low integrity impact, and no availability impact. The vendor advisory URL is provided but does not explicitly state patch availability.
Potential Impact
An attacker can bypass the web origin policy to access privileged pages, potentially leading to limited integrity impact within the browser environment. There is no confidentiality or availability impact reported. The vulnerability requires user interaction and has low attack complexity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html for current remediation guidance. Users should update to version 153.0.8010.36 or later once confirmed patched.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 09/08/2026
- State
- PUBLISHED
- Vendor Advisory Urls
- [object Object]
Threat ID: 6aa0b172acd9273b498119f9
Added to database: 09/09/2026, 01:08:02 UTC
Last enriched: 09/17/2026, 01:06:09 UTC
Last updated: 10/24/2026, 08:45:13 UTC
Views: 35
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