CVE-2026-91721: Use after free in Google Chrome
Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
AI Analysis
Technical Summary
This vulnerability is a use-after-free issue in the internal components of Google Chrome before version 153.0.8010.47. Exploitation requires a remote attacker to deliver a specially crafted HTML page that triggers the flaw, potentially enabling arbitrary code execution outside the sandbox environment. The flaw was publicly disclosed with a critical severity rating by Chromium security. The vendor has released an update to address this issue.
Potential Impact
Successful exploitation could allow remote code execution outside the sandbox, which may lead to full compromise of the affected system. This elevates the risk significantly as it bypasses Chrome's sandbox protections.
Mitigation Recommendations
Google has released an official fix in Chrome version 153.0.8010.47. Users and administrators should update to this version or later to mitigate the vulnerability. No additional action is required beyond applying the update.
CVE-2026-91721: Use after free in Google Chrome
Description
Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
CVSS v3.1
Score 8.8high
Affected software
Chrome
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 is a use-after-free issue in the internal components of Google Chrome before version 153.0.8010.47. Exploitation requires a remote attacker to deliver a specially crafted HTML page that triggers the flaw, potentially enabling arbitrary code execution outside the sandbox environment. The flaw was publicly disclosed with a critical severity rating by Chromium security. The vendor has released an update to address this issue.
Potential Impact
Successful exploitation could allow remote code execution outside the sandbox, which may lead to full compromise of the affected system. This elevates the risk significantly as it bypasses Chrome's sandbox protections.
Mitigation Recommendations
Google has released an official fix in Chrome version 153.0.8010.47. Users and administrators should update to this version or later to mitigate the vulnerability. No additional action is required beyond applying the update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-14T22:51:45.711Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html","vendor":"Google"}]
Threat ID: 6aa9aed555bf5e2cf55add15
Added to database: 09/15/2026, 20:47:17 UTC
Last enriched: 09/15/2026, 21:17:11 UTC
Last updated: 09/16/2026, 04:01:23 UTC
Views: 8
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