CVE-2026-91711

Received Received - Intake

Out-of-Bounds Write in Google Chrome ServiceWorker

Publication date: 2026-09-15

Last updated on: 2026-09-16

Assigner: Chrome

Description

Out of bounds write in ServiceWorker in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-16

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-91711

EUVD

EUVD-2026-79982

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 153.0.8010.47 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is an out-of-bounds write vulnerability in Google Chrome's ServiceWorker component. It allows a remote attacker to execute arbitrary code within the browser's sandbox by tricking a user into visiting a specially crafted HTML page. The issue exists in Chrome versions prior to 153.0.8010.47.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your device through a malicious website. This could lead to unauthorized access to your data, installation of malware, or other malicious activities while staying within the browser's sandbox.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.47 or later to patch the vulnerability.

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