Out-of-bounds read/write in V8 in Google Chrome
CVE-2026-11645 is a high-severity out-of-bounds memory access vulnerability in the V8 JavaScript engine used by Google Chrome. The issue is described as an out-of-bounds read and write affecting Google Chrome prior to 149.0.7827.103, and can be triggered by a remote attacker via a crafted HTML page. The flaw results in memory corruption within the browser’s renderer context and allows arbitrary code execution inside Chrome’s sandbox. Google has stated that exploitation exists in the wild. Publicly available information does not identify the specific vulnerable V8 function, and Google has restricted additional technical details pending broad patch adoption.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
21 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity out-of-bounds memory access vulnerability in Chrome's V8 JavaScript engine that Google says has an exploit in the wild.
A high-severity Chrome zero-day in the V8 JavaScript engine caused by an out-of-bounds read/write flaw that can be triggered via crafted HTML pages, enabling arbitrary code execution inside the browser sandbox, memory corruption, information exposure, crashes, and potentially bypassing protections such as ASLR.
A high-severity out-of-bounds memory access vulnerability in Chrome's V8 JavaScript engine. The content explicitly states that an exploit exists in the wild, making it the most operationally significant issue in this advisory.
Type confusion vulnerability in the V8 engine described as having been fixed and identified as a zero-day exploited in attacks.
The version that knows your environment.
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.