Use after free in TabStrip in Google Chrome on Mac prior to 151.0.7922.137 allowed a remote attacker who had compromised the renderer process to… (CVE-2026-19557)
A use-after-free vulnerability exists in the TabStrip component of Google Chrome on Mac systems prior to version 151.0.7922.137. This flaw allows a remote attacker who has already compromised the renderer process to potentially escape the browser sandbox by using a crafted HTML page. The vulnerability is rated high severity with a CVSS score of 8.3.
AI Analysis
Technical Summary
CVE-2026-19557 is a use-after-free vulnerability in the TabStrip component of Google Chrome on Mac platforms before version 151.0.7922.137. An attacker with control over the renderer process can exploit this flaw by delivering a specially crafted HTML page, potentially enabling sandbox escape. The vulnerability is classified under CWE-416 (Use After Free) and carries a high severity rating with a CVSS 3.1 score of 8.3, indicating high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to escape the sandbox, potentially gaining elevated privileges or executing arbitrary code outside the browser's restricted environment. This impacts the confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should monitor official Google Chrome security advisories for updates and apply the update to version 151.0.7922.137 or later once available.
Use after free in TabStrip in Google Chrome on Mac prior to 151.0.7922.137 allowed a remote attacker who had compromised the renderer process to… (CVE-2026-19557)
Description
A use-after-free vulnerability exists in the TabStrip component of Google Chrome on Mac systems prior to version 151.0.7922.137. This flaw allows a remote attacker who has already compromised the renderer process to potentially escape the browser sandbox by using a crafted HTML page. The vulnerability is rated high severity with a CVSS score of 8.3.
CVSS v3.1
Score 8.3high
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-2026-19557 is a use-after-free vulnerability in the TabStrip component of Google Chrome on Mac platforms before version 151.0.7922.137. An attacker with control over the renderer process can exploit this flaw by delivering a specially crafted HTML page, potentially enabling sandbox escape. The vulnerability is classified under CWE-416 (Use After Free) and carries a high severity rating with a CVSS 3.1 score of 8.3, indicating high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to escape the sandbox, potentially gaining elevated privileges or executing arbitrary code outside the browser's restricted environment. This impacts the confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should monitor official Google Chrome security advisories for updates and apply the update to version 151.0.7922.137 or later once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-h5x6-wpxm-f7wg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-19557"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a7c9b28bf8831d539cdaee1
Added to database: 08/12/2026, 16:11:20 UTC
Last enriched: 08/12/2026, 16:19:15 UTC
Last updated: 08/13/2026, 02:40:59 UTC
Views: 3
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