CVE-2026-9921: Uninitialized Use in Google Chrome
CVE-2026-9921 is a vulnerability in Google Chrome on Android prior to version 148. 0. 7778. 216 involving uninitialized use in the WebGL component. This flaw allows a remote attacker to leak cross-origin information by tricking a user into visiting a crafted HTML page. The vulnerability is classified with high severity by Chromium security. There is no explicit CVSS score or detailed vendor advisory patch status provided in the available data. The vendor advisory link is present but does not specify patch or mitigation details in the input. No known exploits in the wild have been reported.
AI Analysis
Technical Summary
This vulnerability involves uninitialized memory use within the WebGL implementation of Google Chrome on Android versions before 148.0.7778.216. Exploitation can lead to information disclosure across origins, violating browser security boundaries. The issue was publicly disclosed on May 28, 2026. While the Chromium security team rates this as high severity, no CVSS score or explicit remediation status is included in the provided data. The vendor advisory URL is given but does not contain patch details in the input.
Potential Impact
Successful exploitation could allow a remote attacker to leak sensitive cross-origin information from a user's browser session on affected Chrome versions for Android. This compromises the confidentiality of data that should be isolated by the browser's same-origin policy. 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/2026/05/stable-channel-update-for-desktop_0877304591.html for current remediation guidance. Users should update to Chrome version 148.0.7778.216 or later once confirmed. Until then, no specific mitigation steps are provided in the available data.
CVE-2026-9921: Uninitialized Use in Google Chrome
Description
CVE-2026-9921 is a vulnerability in Google Chrome on Android prior to version 148. 0. 7778. 216 involving uninitialized use in the WebGL component. This flaw allows a remote attacker to leak cross-origin information by tricking a user into visiting a crafted HTML page. The vulnerability is classified with high severity by Chromium security. There is no explicit CVSS score or detailed vendor advisory patch status provided in the available data. The vendor advisory link is present but does not specify patch or mitigation details in the input. No known exploits in the wild have been reported.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves uninitialized memory use within the WebGL implementation of Google Chrome on Android versions before 148.0.7778.216. Exploitation can lead to information disclosure across origins, violating browser security boundaries. The issue was publicly disclosed on May 28, 2026. While the Chromium security team rates this as high severity, no CVSS score or explicit remediation status is included in the provided data. The vendor advisory URL is given but does not contain patch details in the input.
Potential Impact
Successful exploitation could allow a remote attacker to leak sensitive cross-origin information from a user's browser session on affected Chrome versions for Android. This compromises the confidentiality of data that should be isolated by the browser's same-origin policy. 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/2026/05/stable-channel-update-for-desktop_0877304591.html for current remediation guidance. Users should update to Chrome version 148.0.7778.216 or later once confirmed. Until then, no specific mitigation steps are provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-05-28T17:24:51.636Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html","vendor":"Google"}]
Threat ID: 6a18c667e29bf47b503b5261
Added to database: 5/28/2026, 10:49:11 PM
Last enriched: 5/28/2026, 11:49:04 PM
Last updated: 5/29/2026, 8:06:08 AM
Views: 6
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