CVE-2026-87491: Out of bounds write in Google Chrome
Description
Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
CVSS v3.1
Score 8.8high
Affected software
Chrome
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
An out-of-bounds write vulnerability exists in the V8 engine of Google Chrome versions before 153.0.8010.36. Exploitation of this flaw enables remote attackers to execute arbitrary code inside the sandbox environment via a specially crafted HTML page. The vulnerability is rated with a CVSS 3.1 score of 8.8, indicating high impact on confidentiality, integrity, and availability. The issue was publicly disclosed and patched by Google in Chrome version 153.0.8010.36.
Potential Impact
Successful exploitation allows remote code execution within the sandbox of the affected Chrome browser, potentially compromising the confidentiality, integrity, and availability of the user's environment. The vulnerability is exploitable via web content, requiring user interaction (UI:R).
Mitigation Recommendations
Users and administrators should update Google Chrome to version 153.0.8010.36 or later, where this vulnerability is fixed. Applying this official update fully mitigates the risk. No additional action is required beyond updating to the patched version.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-08T22:38:36.226Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html","vendor":"Google"}]
Threat ID: 6aa0b175acd9273b49811a45
Added to database: 09/09/2026, 01:08:05 UTC
Last enriched: 09/24/2026, 04:20:26 UTC
Last updated: 10/23/2026, 15:10:15 UTC
Views: 103
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