CVE-2026-78893

Analyzed Analyzed - Analysis Complete

Information Leak in Google Chrome QUIC Implementation

Publication date: 2026-08-25

Last updated on: 2026-08-27

Assigner: Chrome

Description

Information leak in QUIC in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to leak sensitive information 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

2026-08-27

Generated

2026-09-15

AI Q&A

2026-08-26

EPSS Evaluated

2026-09-14

NVD

CVE-2026-78893

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This vulnerability is an information leak in QUIC, a protocol used for internet communication, specifically in Google Chrome versions before 152.0.7977.65. A remote attacker could exploit a crafted HTML page to access sensitive information that should remain private.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 152.0.7977.65. Detection involves checking the installed Chrome version. On Linux, run: google-chrome --version. On Windows, check via Control Panel or run: wmic product where name='Google Chrome' get version. If the version is below 152.0.7977.65, the system is vulnerable.

Impact Analysis

If you use an affected version of Google Chrome, this vulnerability could allow attackers to steal sensitive data such as login credentials, personal messages, or financial information by tricking you into visiting a malicious webpage.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR's data protection principles and HIPAA's requirements for safeguarding health information. Organizations may face legal penalties or reputational damage if exploited.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the information leak vulnerability in QUIC.

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