CVE-2026-78967

Received Received - Intake

Missing Authorization in Google Chrome BFCache

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: Chrome

Description

Missing authorization in BFCache in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-25

Last Modified

2026-08-25

Generated

2026-08-26

AI Q&A

2026-08-26

EPSS Evaluated

N/A

NVD

CVE-2026-78967

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 152.0.7977.65 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability involves missing authorization in BFCache (Back-Forward Cache) in Google Chrome versions before 152.0.7977.65. It allows a remote attacker who has already compromised the renderer process to bypass system access restrictions by using a specially crafted HTML page.

Impact Analysis

If exploited, this vulnerability could let an attacker gain unauthorized access to restricted parts of the system through the compromised renderer process. This might lead to data theft, unauthorized actions, or further system compromise depending on the attacker's goals.

Compliance Impact

This vulnerability could lead to unauthorized data access or exposure, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using affected Chrome versions risk non-compliance penalties if data breaches occur due to this issue.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the missing authorization issue in BFCache.

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