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CVE-2026-11645

Google Chromium V8 Out-of-Bounds Read and Write Vulnerability

Published Jun 9, 2026Sources checked Sep 28, 2026
8.8HIGHCVSS out of 10
What this means

Actively exploited

CISA lists CVE-2026-11645 in its Known Exploited Vulnerabilities catalog, which means exploitation has been observed. The entry applies to Google Chromium V8.

  • Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA KEVListedObserved exploitation
EPSS2.2%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview

What is CVE-2026-11645?

Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)