CVE-2026-78941: Information leak in Core

Published Mar 31, 2026
·
Updated

Information leak in Core in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

Credit

Google

Affected Software

2 affected componentsFixes available
Google Google Chrome<152.0.7977.65
Google Chrome<152.0.7977.64
152.0.7977.64

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 152.0.7977.64

Event History

Mar 31, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Aug 25, 2026
CVE Published
via MITRE·08:10 PM
Data Sourced
via MITRE·08:10 PM
DescriptionWeakness
Data Sourced
via NVD·09:17 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What prerequisite does an attacker need to exploit this issue?

The attacker must already have compromised the Chrome renderer process. The issue is then triggered through a crafted HTML page to bypass site isolation and leak information.

2

Which Chrome versions are affected?

Google Chrome versions prior to 152.0.7977.65 are affected. Updating to version 152.0.7977.65 or later addresses the affected version range described.

3

Who is realistically exposed to this vulnerability?

Users are exposed when using an affected Chrome version and a renderer compromise has already occurred. The vulnerability is relevant as a post-compromise escape from Chrome's site-isolation boundary rather than as a standalone renderer-compromise issue.

Company

Resources

Contact

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