CVE-2026-9959: Race in Google Chrome
A race condition vulnerability exists in the WebRTC component of Google Chrome on Windows versions prior to 148. 0. 7778. 216. This flaw allows a remote attacker to leak cross-origin data by tricking a user into visiting a specially crafted HTML page. The issue was assigned a high security severity by the Chromium project. No CVSS score is available for this vulnerability. Google has published an advisory indicating a stable channel update addressing this issue.
AI Analysis
Technical Summary
CVE-2026-9959 is a race condition vulnerability in the WebRTC implementation of Google Chrome on Windows platforms before version 148.0.7778.216. The flaw enables a remote attacker to bypass same-origin data protections and leak cross-origin information by leveraging a crafted HTML page. The vulnerability was publicly disclosed and assigned a high severity rating by the Chromium security team. Although no CVSS score is provided, the vendor advisory confirms a stable update has been released to remediate the issue.
Potential Impact
Successful exploitation of this vulnerability could lead to unauthorized disclosure of cross-origin data, potentially exposing sensitive information from other web origins to a remote attacker. This compromises the confidentiality guarantees normally enforced by browser same-origin policies.
Mitigation Recommendations
Google has released a stable channel update for Chrome version 148.0.7778.216 that addresses this vulnerability. Users and administrators should update affected Chrome installations to this version or later to remediate the issue. Patch status is confirmed by the vendor advisory. No additional mitigation steps are indicated.
CVE-2026-9959: Race in Google Chrome
Description
A race condition vulnerability exists in the WebRTC component of Google Chrome on Windows versions prior to 148. 0. 7778. 216. This flaw allows a remote attacker to leak cross-origin data by tricking a user into visiting a specially crafted HTML page. The issue was assigned a high security severity by the Chromium project. No CVSS score is available for this vulnerability. Google has published an advisory indicating a stable channel update addressing this issue.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9959 is a race condition vulnerability in the WebRTC implementation of Google Chrome on Windows platforms before version 148.0.7778.216. The flaw enables a remote attacker to bypass same-origin data protections and leak cross-origin information by leveraging a crafted HTML page. The vulnerability was publicly disclosed and assigned a high severity rating by the Chromium security team. Although no CVSS score is provided, the vendor advisory confirms a stable update has been released to remediate the issue.
Potential Impact
Successful exploitation of this vulnerability could lead to unauthorized disclosure of cross-origin data, potentially exposing sensitive information from other web origins to a remote attacker. This compromises the confidentiality guarantees normally enforced by browser same-origin policies.
Mitigation Recommendations
Google has released a stable channel update for Chrome version 148.0.7778.216 that addresses this vulnerability. Users and administrators should update affected Chrome installations to this version or later to remediate the issue. Patch status is confirmed by the vendor advisory. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-05-28T17:25:00.792Z
- 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: 6a18c676e29bf47b503b631a
Added to database: 5/28/2026, 10:49:26 PM
Last enriched: 5/28/2026, 11:20:06 PM
Last updated: 5/29/2026, 2:55:10 PM
Views: 8
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