CVE-2026-85046 — A Critical Security Alert

Actively Exploited Sandbox RCE in All Chromium Versions

Security Advisory

2026

02

The Vulnerability

Understanding the threat

What is CVE-2026-85046?

01

Sandbox Escape Vulnerability A critical flaw allowing attackers to break out of Chromium's security sandbox
02

Remote Code Execution Enables arbitrary code execution on victim systems without user interaction
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Actively Exploited Attackers are already using this vulnerability in real-world campaigns
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All Versions Affected Impacts every Chromium-based browser across all platforms

478

Hacker News Points

Indicates high community concern and severity of the vulnerability

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Technical Details & Response

How it works and what to do

Attack Vector

1

Initial Access

Victim visits a malicious website or loads compromised content

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2

Sandbox Bypass

Exploit code escapes Chromium's protective sandbox

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3

Code Execution

Attacker gains ability to run arbitrary code on the system

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4

System Compromise

Full control of the affected device, data theft, or further malware deployment

Affected Browsers & Recommended Actions

public

Chrome

Google's flagship browser — update immediately

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Edge

Microsoft Edge — apply latest security patches

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Brave

Privacy-focused browser also affected

update

All Chromium Browsers

Opera, Vivaldi, and others require urgent updates

priority_high

Immediate Action

Update all Chromium-based browsers NOW

verified_user

Mitigation

Monitor systems for unusual activity and apply vendor patches

Stay Protected

Update your browsers immediately. This is an active threat.

https://nvd.nist.gov/vuln/detail/cve-2026-85046