CVE-2026-11284: Side-channel information leakage in Google Chrome
CVE-2026-11284 is a side-channel information leakage vulnerability in the PerformanceAPIs of Google Chrome versions prior to 149. 0. 7827. 53. It allows a remote attacker to leak cross-origin data by using a crafted HTML page. The vulnerability is classified by Chromium as having low security severity. There is no CVSS score provided, and no explicit patch or remediation level is stated in the available data. The vendor advisory link points to a stable channel update announcement but does not explicitly confirm patch status for this specific issue.
AI Analysis
Technical Summary
This vulnerability involves side-channel information leakage through the PerformanceAPIs in Google Chrome before version 149.0.7827.53. An attacker can exploit this flaw remotely by crafting an HTML page that leaks data across origins, violating the same-origin policy. The Chromium project has assigned a low severity rating to this issue. No CVSS score or detailed remediation information is provided in the input data. The vendor advisory URL references a stable channel update but does not explicitly confirm a fix for this vulnerability.
Potential Impact
The impact is limited to information leakage of cross-origin data via side-channel attacks using PerformanceAPIs. The Chromium security team rates this vulnerability as low severity, indicating that the potential damage or exploitability is limited. There are no known exploits in the wild at this time.
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. Since this is a client-side browser vulnerability, updating to the latest stable version of Google Chrome when available is recommended once the vendor confirms a fix. No other specific mitigations are provided in the advisory.
CVE-2026-11284: Side-channel information leakage in Google Chrome
Description
CVE-2026-11284 is a side-channel information leakage vulnerability in the PerformanceAPIs of Google Chrome versions prior to 149. 0. 7827. 53. It allows a remote attacker to leak cross-origin data by using a crafted HTML page. The vulnerability is classified by Chromium as having low security severity. There is no CVSS score provided, and no explicit patch or remediation level is stated in the available data. The vendor advisory link points to a stable channel update announcement but does not explicitly confirm patch status for this specific issue.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves side-channel information leakage through the PerformanceAPIs in Google Chrome before version 149.0.7827.53. An attacker can exploit this flaw remotely by crafting an HTML page that leaks data across origins, violating the same-origin policy. The Chromium project has assigned a low severity rating to this issue. No CVSS score or detailed remediation information is provided in the input data. The vendor advisory URL references a stable channel update but does not explicitly confirm a fix for this vulnerability.
Potential Impact
The impact is limited to information leakage of cross-origin data via side-channel attacks using PerformanceAPIs. The Chromium security team rates this vulnerability as low severity, indicating that the potential damage or exploitability is limited. There are no known exploits in the wild at this time.
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. Since this is a client-side browser vulnerability, updating to the latest stable version of Google Chrome when available is recommended once the vendor confirms a fix. No other specific mitigations are provided in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-04T17:11:15.167Z
- 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: 6a220ee9e29bf47b50de398a
Added to database: 6/4/2026, 11:48:57 PM
Last enriched: 6/5/2026, 12:18:29 AM
Last updated: 6/5/2026, 4:59:25 AM
Views: 3
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