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CVE-2026-91728 is a High-severity integer-overflow vulnerability in the V8 JavaScript and WebAssembly engine used by Google Chrome. Chrome versions before 153.0.8010.47 are affected. A remote attacker can trigger the flaw by causing Chrome to process a crafted HTML page, resulting in arbitrary code execution within the browser sandbox.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
High-severity integer-overflow vulnerability in Chrome V8.
A High-severity integer-overflow vulnerability in Chrome's V8 JavaScript engine.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.