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HighCISA KEVExploited in the wildPublic exploit

RCE in Google Chrome V8 via crafted HTML page

IdentifiersCVE-2026-3910CWE-682

CVE-2026-3910 is a high-severity inappropriate implementation vulnerability in the V8 JavaScript and WebAssembly engine in Google Chrome prior to 146.0.7680.75/.76. Public reporting states that a remote attacker can trigger the flaw by getting a target to load a crafted HTML page, leading to arbitrary code execution inside the Chrome renderer sandbox. Multiple cited reports describe the issue only at a high level as an implementation flaw in V8, and Google restricted technical details because exploitation was observed in the wild. One exploitability-assessment context in the provided content characterizes the underlying issue as write-barrier elision leading to a use-after-free, but that detail is not corroborated by an official vendor description in the supplied material.

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ANALYST BRIEF

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.

Successful exploitation allows arbitrary code execution within Chrome's sandboxed renderer context. This can enable execution of attacker-controlled code in the browser process handling untrusted web content, potentially allowing theft of data accessible to that context, further in-browser compromise, and use as part of a multi-stage exploit chain. By itself, the described outcome is code execution inside the sandbox rather than a full sandbox escape or direct system compromise.

Mitigation

If you can’t patch tonight, do this now.

Primary mitigation is expedited patching. Until updates are fully deployed, reduce exposure to untrusted web content, restrict access to potentially malicious or compromised sites, and consider temporary hardening measures for high-risk users such as limiting browser use for sensitive workflows and increasing monitoring for browser exploitation activity. Because Google withheld technical details and no specific IOCs are provided in the supplied content, there is no vulnerability-specific mitigation beyond patching and general browser attack-surface reduction.

Remediation

Patch, then assume compromise.

Update Google Chrome to version 146.0.7680.75 or later on Windows and Linux, and 146.0.7680.76 or later on macOS, as referenced in the supplied reporting. Apply the corresponding security updates for other Chromium-based browsers when available. Restart the browser after updating to ensure the patched build is active.
PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.

VALID 0 / 1 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

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.

VendorProductType
GoogleChromeapplication

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What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures2

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Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity55

Community discussion across Reddit, Mastodon, and other social sources.