CVE-2026-91748: Race condition in Google Chrome
Race condition in Extensions in Google Chrome on on Mac prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via UI Interaction. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-91748 is a race condition vulnerability in Google Chrome's Extensions on Mac platforms before version 153.0.8010.47. An attacker who has compromised the renderer process and employs social engineering techniques may exploit this flaw to execute arbitrary code outside the sandbox environment through UI interaction. This vulnerability has been publicly disclosed and is classified as high severity by the Chromium security team. The vendor advisory URL is provided for reference.
Potential Impact
Successful exploitation could allow an attacker with control over the renderer process and the ability to trick the user via social engineering to execute arbitrary code outside the sandbox, potentially compromising the host system's security boundaries. This elevates the risk of code execution beyond the browser's intended isolation.
Mitigation Recommendations
A fixed version is available as of Chrome 153.0.8010.47. Users and administrators should update Google Chrome on Mac systems to version 153.0.8010.47 or later to remediate this vulnerability. Refer to the official Google Chrome stable channel update blog for confirmation and update instructions.
CVE-2026-91748: Race condition in Google Chrome
Description
Race condition in Extensions in Google Chrome on on Mac prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via UI Interaction. (Chromium security severity: High)
CVSS v3.1
Score 8.3high
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-91748 is a race condition vulnerability in Google Chrome's Extensions on Mac platforms before version 153.0.8010.47. An attacker who has compromised the renderer process and employs social engineering techniques may exploit this flaw to execute arbitrary code outside the sandbox environment through UI interaction. This vulnerability has been publicly disclosed and is classified as high severity by the Chromium security team. The vendor advisory URL is provided for reference.
Potential Impact
Successful exploitation could allow an attacker with control over the renderer process and the ability to trick the user via social engineering to execute arbitrary code outside the sandbox, potentially compromising the host system's security boundaries. This elevates the risk of code execution beyond the browser's intended isolation.
Mitigation Recommendations
A fixed version is available as of Chrome 153.0.8010.47. Users and administrators should update Google Chrome on Mac systems to version 153.0.8010.47 or later to remediate this vulnerability. Refer to the official Google Chrome stable channel update blog for confirmation and update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-14T22:53:04.326Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html","vendor":"Google"}]
Threat ID: 6aa9aeda55bf5e2cf55add38
Added to database: 09/15/2026, 20:47:22 UTC
Last enriched: 09/15/2026, 21:01:47 UTC
Last updated: 09/16/2026, 04:01:23 UTC
Views: 8
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