CVE-2026-106300

Undergoing Analysis Undergoing Analysis - In Progress

Race Condition in Google Chrome CacheStorage

Publication date: 2026-10-06

Last updated on: 2026-10-07

Assigner: Chrome

Description

Race condition in CacheStorage in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-06

Last Modified

2026-10-07

Generated

2026-10-19

AI Q&A

2026-10-07

EPSS Evaluated

2026-10-18

NVD

CVE-2026-106300

EUVD

EUVD-2026-93675

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 155.0.8059.39 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-367	The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

Attack-Flow Graph

Executive Summary

This is a race condition vulnerability in Google Chrome's CacheStorage. A race condition occurs when the program's behavior depends on the sequence or timing of uncontrollable events. In this case, it allows an attacker who has compromised the renderer process to read memory outside the sandbox by exploiting a timing issue in the cache storage system.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 155.0.8059.39. To detect it, check your Chrome version by running chrome://version/ in the browser. If your version is below 155.0.8059.39, the system is vulnerable.

Impact Analysis

If you are a Chrome user, this vulnerability could allow an attacker to access sensitive data in memory that should be protected by the sandbox. This could lead to unauthorized access to private information, such as passwords or personal data, if the attacker successfully exploits the race condition.

Compliance Impact

This vulnerability could potentially lead to data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Unauthorized access to personal or health data could result in legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Update Google Chrome to version 155.0.8059.39 or later to address the race condition in CacheStorage.

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