CVE-2026-7909
Awaiting Analysis Awaiting Analysis - Queue
ServiceWorker Implementation Flaw in Google Chrome

Publication date: 2026-05-06

Last updated on: 2026-05-06

Assigner: Chrome

Description
Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-06
Last Modified
2026-05-06
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-14
NVD
CVE-2026-7909
EUVD
EUVD-2026-27921
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 148.0.7778.96 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-693 The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is an inappropriate implementation in the ServiceWorker component of Google Chrome versions prior to 148.0.7778.96. It allows a remote attacker, who has already compromised the renderer process, to bypass site isolation by using a specially crafted HTML page.

Impact Analysis

The vulnerability can allow an attacker to bypass site isolation protections in the browser. This means that an attacker who has compromised the renderer process could potentially access or manipulate data from other sites or browser contexts that should be isolated, increasing the risk of data leakage or unauthorized access.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-7909. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart