importantSYS.SOURCE: The Hacker News• 2026-09-09T14:41:03+05:30

Google Chrome V8 Zero-Day Exploited in the Wild for Sandbox Code Execution

#vulnerability #browser security #zero-day

Google patched a critical V8 zero-day (CVE-2026-87491) exploited in the wild for sandboxed code execution. The update addresses seven actively exploited Chrome zero-days this year, along with other critical flaws in WebGL and Cast components.

Google on Thursday released updates to patch 230 security vulnerabilities, including one that has come under active exploitation in the wild.

The medium-severity vulnerability, assigned the CVE identifier CVE-2026-87491 (CVSS score: N/A), has been described as an out-of-bounds bug in V8, Chrome's JavaScript and WebAssembly engine.

"Out-of-bounds write in V8 in Google Chrome prior to

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> GOOGLE CHROME V8 ZERO-DAY EXPLOITED IN THE WILD FOR SANDBOX CODE EXECUTION > AI RESEARCHER JACOB COXON RESIGNS FROM ANTHROPIC, WARNS OF EXISTENTIAL RISKS > CRITICAL CPANEL VULNERABILITY ALLOWS PRIVILEGE ESCALATION VIA EMAILTRACK MODULE > F5 BIG-IP APM MALWARE EVADES DISK SCANS BY INJECTING PHP WEB SHELL INTO MEMORY > GPT-5.6 SOL'S APPLICATION IN QUANTUM COMPUTING EXPERIMENTS > THE PSYCHOLOGY OF MOTIVATION AND SCIENTIFIC PROGRESS > RESEARCHER DEMONSTRATES BYPASS OF MICROSOFT DEFENDER'S SHIELDBREAK PATCH VIA SHIELDCRASH VULNERABILITY > COPYRIGHT ABOLITION CLAIM AND MASTODON WEB APPLICATION TECHNICAL REQUIREMENTS > SAP ADDRESSES CRITICAL CVSS 10.0 VULNERABILITY IN KERNEL ALLOWING UNAUTHENTICATED RCE > TRADEMARK STATUS OF 'TWEET' AND BIRD LOGO IN X V. PROJECT BLUEBIRD CASE> GOOGLE CHROME V8 ZERO-DAY EXPLOITED IN THE WILD FOR SANDBOX CODE EXECUTION > AI RESEARCHER JACOB COXON RESIGNS FROM ANTHROPIC, WARNS OF EXISTENTIAL RISKS > CRITICAL CPANEL VULNERABILITY ALLOWS PRIVILEGE ESCALATION VIA EMAILTRACK MODULE > F5 BIG-IP APM MALWARE EVADES DISK SCANS BY INJECTING PHP WEB SHELL INTO MEMORY > GPT-5.6 SOL'S APPLICATION IN QUANTUM COMPUTING EXPERIMENTS > THE PSYCHOLOGY OF MOTIVATION AND SCIENTIFIC PROGRESS > RESEARCHER DEMONSTRATES BYPASS OF MICROSOFT DEFENDER'S SHIELDBREAK PATCH VIA SHIELDCRASH VULNERABILITY > COPYRIGHT ABOLITION CLAIM AND MASTODON WEB APPLICATION TECHNICAL REQUIREMENTS > SAP ADDRESSES CRITICAL CVSS 10.0 VULNERABILITY IN KERNEL ALLOWING UNAUTHENTICATED RCE > TRADEMARK STATUS OF 'TWEET' AND BIRD LOGO IN X V. PROJECT BLUEBIRD CASE