CVE-2026-19558 in Chrome

Summary

by MITRE • 08/12/2026

Use after free in Extensions in Google Chrome prior to 151.0.7922.137 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: High)

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

• Responsible: Chrome
• Reservation: 08/11/2026
• Disclosure: 08/12/2026
• Moderation: accepted
• Entry: VDB-388727
• CPE: ready
• CWE: CWE-416 (confirmed)
• CVSS: 5.5 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: very low
• Sector: Pharma, Chemical, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-19558
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19558
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-19558/