CVE-2026-84331: Incorrect authorization in Google Chrome
Description
CVE-2026-84331 is a low severity vulnerability in Google Chrome prior to version 152.0.7977.75. It involves incorrect authorization in the Actor component, allowing a remote attacker who has compromised the renderer process to bypass the web origin policy via a crafted HTML page. This flaw could potentially weaken the browser's security model but does not directly lead to integrity or availability impacts.
CVSS v3.1
Score 3.1low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-84331) affects Google Chrome versions before 152.0.7977.75. It is caused by incorrect authorization checks in the Actor component, which can be exploited by a remote attacker with control over the renderer process to bypass the web origin policy using a specially crafted HTML page. The vulnerability is classified under CWE-863 (Incorrect Authorization). The CVSS v3.1 base score is 3.1, indicating a low severity impact primarily on confidentiality. There are no known exploits in the wild, and no official patch links are provided in the input data.
Potential Impact
An attacker who has already compromised the renderer process can bypass the web origin policy, potentially allowing unauthorized access to web content that should be isolated by origin. The impact is limited to confidentiality (partial information disclosure) with no integrity or availability effects reported. The overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch links are provided, users should monitor Google Chrome updates and apply the update to version 152.0.7977.75 or later once available. No additional mitigation steps are specified in the provided data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-8x7f-rf36-qg2h
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-84331"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
Threat ID: 6a984531acd9273b496aa89e
Added to database: 09/02/2026, 15:48:01 UTC
Last enriched: 09/08/2026, 02:28:03 UTC
Last updated: 10/18/2026, 18:48:24 UTC
Views: 58
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.