CVE-2026-12459: Inappropriate implementation in Google Chrome
A vulnerability in Google Chrome's Serial implementation prior to version 149.0.7827.155 allows remote attackers to inject arbitrary scripts or HTML via a crafted HTML page, resulting in a UXSS (Universal Cross-Site Scripting) issue. This vulnerability is classified with high severity by Chromium security. The issue is fixed in version 149.0.7827.155.
AI Analysis
Technical Summary
CVE-2026-12459 is a high-severity vulnerability in the Serial component of Google Chrome before version 149.0.7827.155. It permits remote attackers to perform UXSS by injecting arbitrary scripts or HTML through a crafted HTML page. This could allow attackers to bypass same-origin policies and execute malicious code in the context of trusted web pages. The vulnerability is addressed in Chrome version 149.0.7827.155.
Potential Impact
Exploitation of this vulnerability could enable remote attackers to inject arbitrary scripts or HTML, potentially leading to unauthorized actions or data exposure within the browser context. This undermines the security model of web content isolation and could facilitate phishing, session hijacking, or other malicious activities relying on script injection.
Mitigation Recommendations
Users should update Google Chrome to version 149.0.7827.155 or later, where this vulnerability is fixed. No other mitigation steps are indicated by the vendor advisory. Patch status is confirmed by the vendor advisory linked.
CVE-2026-12459: Inappropriate implementation in Google Chrome
Description
A vulnerability in Google Chrome's Serial implementation prior to version 149.0.7827.155 allows remote attackers to inject arbitrary scripts or HTML via a crafted HTML page, resulting in a UXSS (Universal Cross-Site Scripting) issue. This vulnerability is classified with high severity by Chromium security. The issue is fixed in version 149.0.7827.155.
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12459 is a high-severity vulnerability in the Serial component of Google Chrome before version 149.0.7827.155. It permits remote attackers to perform UXSS by injecting arbitrary scripts or HTML through a crafted HTML page. This could allow attackers to bypass same-origin policies and execute malicious code in the context of trusted web pages. The vulnerability is addressed in Chrome version 149.0.7827.155.
Potential Impact
Exploitation of this vulnerability could enable remote attackers to inject arbitrary scripts or HTML, potentially leading to unauthorized actions or data exposure within the browser context. This undermines the security model of web content isolation and could facilitate phishing, session hijacking, or other malicious activities relying on script injection.
Mitigation Recommendations
Users should update Google Chrome to version 149.0.7827.155 or later, where this vulnerability is fixed. No other mitigation steps are indicated by the vendor advisory. Patch status is confirmed by the vendor advisory linked.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-16T19:38:31.102Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01750511403.html","vendor":"Google"}]
Threat ID: 6a31ffc90b89be68889b0226
Added to database: 6/17/2026, 2:00:41 AM
Last enriched: 6/17/2026, 2:16:02 AM
Last updated: 6/17/2026, 5:12:05 AM
Views: 5
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