CVE-2026-11203: Policy bypass in Google Chrome
A medium severity vulnerability (CVE-2026-11203) in Google Chrome on Mac prior to version 149.0.7827.53 allows a remote attacker to leak cross-origin data via a crafted HTML page due to inappropriate GPU implementation. This issue can lead to unauthorized disclosure of sensitive information without impacting integrity or availability.
AI Analysis
Technical Summary
CVE-2026-11203 is a policy bypass vulnerability in the GPU implementation of Google Chrome on Mac systems before version 149.0.7827.53. The flaw allows a remote attacker to leak cross-origin data by crafting a malicious HTML page, violating the same-origin policy. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information) and has a CVSS 3.1 base score of 6.5, indicating medium severity. No known exploits in the wild have been reported. The vendor advisory linked indicates a stable channel update addressing this issue in version 149.0.7827.53.
Potential Impact
Successful exploitation of this vulnerability can result in unauthorized disclosure of sensitive cross-origin data to a remote attacker. There is no impact on data integrity or system availability. The vulnerability requires user interaction (UI:R) but no privileges or authentication.
Mitigation Recommendations
A fix is available in Google Chrome version 149.0.7827.53. Users and administrators should update affected Chrome installations on Mac to this version or later to remediate the vulnerability. No additional mitigations are indicated by the vendor advisory.
CVE-2026-11203: Policy bypass in Google Chrome
Description
A medium severity vulnerability (CVE-2026-11203) in Google Chrome on Mac prior to version 149.0.7827.53 allows a remote attacker to leak cross-origin data via a crafted HTML page due to inappropriate GPU implementation. This issue can lead to unauthorized disclosure of sensitive information without impacting integrity or availability.
CVSS v3.1
Score 6.5medium
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11203 is a policy bypass vulnerability in the GPU implementation of Google Chrome on Mac systems before version 149.0.7827.53. The flaw allows a remote attacker to leak cross-origin data by crafting a malicious HTML page, violating the same-origin policy. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information) and has a CVSS 3.1 base score of 6.5, indicating medium severity. No known exploits in the wild have been reported. The vendor advisory linked indicates a stable channel update addressing this issue in version 149.0.7827.53.
Potential Impact
Successful exploitation of this vulnerability can result in unauthorized disclosure of sensitive cross-origin data to a remote attacker. There is no impact on data integrity or system availability. The vulnerability requires user interaction (UI:R) but no privileges or authentication.
Mitigation Recommendations
A fix is available in Google Chrome version 149.0.7827.53. Users and administrators should update affected Chrome installations on Mac to this version or later to remediate the vulnerability. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-04T17:10:47.492Z
- 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: 6a220868e29bf47b50dbd6c5
Added to database: 06/04/2026, 23:21:12 UTC
Last enriched: 06/12/2026, 10:40:54 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 54
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.