CVE-2026-84356: UI misrepresentation in Google Chrome
Description
UI misrepresentation in FullScreen in Google Chrome prior to 152.0.7977.75 allowed a remote attacker to spoof address bar via a crafted HTML page. (Chromium security severity: Low)
CVSS v3.1
Score 4.3medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84356 is a vulnerability in Google Chrome's FullScreen mode UI that enables remote attackers to spoof the address bar by using a crafted HTML page. This flaw affects versions of Chrome before 152.0.7977.75. The vulnerability is classified as a UI misrepresentation issue with a medium severity rating and a CVSS score of 4.3. The vendor has issued a stable channel update to fix this vulnerability as detailed in the official Google Chrome release blog.
Potential Impact
The vulnerability allows an attacker to spoof the address bar in FullScreen mode, potentially misleading users about the legitimacy of the website they are visiting. This could facilitate phishing attacks by making malicious sites appear trustworthy. There is no direct impact on confidentiality or availability, and no known exploits in the wild have been reported.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 152.0.7977.75 or later, where this vulnerability has been fixed. The vendor advisory confirms an official fix is available. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-01T16:21:34.451Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop.html","vendor":"Google"}]
Threat ID: 6a976550acd9273b495af3f4
Added to database: 09/01/2026, 23:52:48 UTC
Last enriched: 09/17/2026, 22:50:22 UTC
Last updated: 10/16/2026, 06:48:19 UTC
Views: 96
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