CVE-2026-113303 in Chrome

Summary

by MITRE • 10/21/2026

Memory corruption in WebRTC in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Critical)

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• Responsible: Chrome
• Reservation: 10/20/2026
• Disclosure: 10/21/2026
• Moderation: accepted
• Entry: VDB-424636
• CPE: 20261021
• CWE: CWE-119 (confirmed)
• CVSS: 8.8 (CISA-ADP)
• EPSS: 0.00000
• KEV: no
• Activities: very low
• Sector: Chemical, Education, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-113303
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-113303
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-113303/