CVE-2026-9921: Uninitialized Use in Google Chrome
Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin information via a crafted HTML page. (Chromium security severity: High)
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
Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin information via a crafted HTML page. (Chromium security severity: High)
CVSS v3.1
Score 4.3medium
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
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: 05/28/2026, 22:49:11 UTC
Last enriched: 05/28/2026, 23:49:04 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 41
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