CVE-2026-11221: Insufficient validation of untrusted input in Google Chrome
CVE-2026-11221 is a vulnerability in Google Chrome prior to version 149. 0. 7827. 53 involving insufficient validation of untrusted input in the PointerLock feature. This flaw allows a remote attacker who has already compromised the renderer process to perform UI spoofing via a crafted HTML page. The vulnerability is classified with low severity by Chromium security. There is no explicit patch status provided in the available data, and no known exploits in the wild have been reported. The vendor advisory link points to a Chrome stable channel update announcement but does not explicitly confirm patch availability for this issue.
AI Analysis
Technical Summary
This vulnerability arises from insufficient validation of untrusted input in the PointerLock component of Google Chrome before version 149.0.7827.53. An attacker with control over the renderer process can exploit this to conduct UI spoofing attacks by crafting malicious HTML content. The issue is recognized by Chromium security as low severity. No CVSS score is assigned, and the vendor advisory does not explicitly state remediation details.
Potential Impact
The impact is limited to UI spoofing, which can mislead users by displaying deceptive interface elements. Exploitation requires prior compromise of the renderer process, thus limiting the attacker's capabilities to scenarios where such control is already established. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed—check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html for current remediation guidance. Users should update to Chrome version 149.0.7827.53 or later if available. Since the vulnerability requires prior renderer compromise, maintaining general browser security best practices is advisable.
CVE-2026-11221: Insufficient validation of untrusted input in Google Chrome
Description
CVE-2026-11221 is a vulnerability in Google Chrome prior to version 149. 0. 7827. 53 involving insufficient validation of untrusted input in the PointerLock feature. This flaw allows a remote attacker who has already compromised the renderer process to perform UI spoofing via a crafted HTML page. The vulnerability is classified with low severity by Chromium security. There is no explicit patch status provided in the available data, and no known exploits in the wild have been reported. The vendor advisory link points to a Chrome stable channel update announcement but does not explicitly confirm patch availability for this issue.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from insufficient validation of untrusted input in the PointerLock component of Google Chrome before version 149.0.7827.53. An attacker with control over the renderer process can exploit this to conduct UI spoofing attacks by crafting malicious HTML content. The issue is recognized by Chromium security as low severity. No CVSS score is assigned, and the vendor advisory does not explicitly state remediation details.
Potential Impact
The impact is limited to UI spoofing, which can mislead users by displaying deceptive interface elements. Exploitation requires prior compromise of the renderer process, thus limiting the attacker's capabilities to scenarios where such control is already established. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed—check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html for current remediation guidance. Users should update to Chrome version 149.0.7827.53 or later if available. Since the vulnerability requires prior renderer compromise, maintaining general browser security best practices is advisable.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-04T17:10:54.472Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html","vendor":"Google"}]
Threat ID: 6a22086fe29bf47b50dbe7ce
Added to database: 6/4/2026, 11:21:19 PM
Last enriched: 6/4/2026, 11:34:37 PM
Last updated: 6/5/2026, 5:01:56 AM
Views: 2
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