High

Out-of-bounds read/write in Google Chrome V8

IdentifiersCVE-2026-7899CWE-125· Out-of-bounds Read

CVE-2026-7899 is a high-severity memory safety vulnerability in the V8 JavaScript engine used by Google Chrome. The issue is described as an out-of-bounds read and write affecting Chrome versions prior to 148.0.7778.96. A remote attacker can trigger the flaw via a crafted HTML page, causing V8 to access memory outside the intended bounds. The provided reporting states that successful exploitation may allow arbitrary code execution inside the Chrome sandbox.

For your environment

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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 can allow a remote attacker to execute arbitrary code within the Chrome renderer sandbox. Because the flaw is reachable through malicious web content, it presents drive-by exploitation risk when a target visits an attacker-controlled or attacker-influenced page. The available content does not state that active exploitation was observed at release time.

Mitigation

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

Until patching is completed, reduce exposure by limiting use of untrusted websites and web content, applying enterprise browser hardening controls, and ensuring Chrome sandboxing and site isolation protections remain enabled. Prioritize rapid patch deployment because the vulnerability is remotely reachable through crafted HTML content.

Remediation

Patch, then assume compromise.

Update Google Chrome to version 148.0.7778.96 or later on Linux, and to 148.0.7778.96/97 or later on Windows and macOS, as referenced in the provided content. Chromium-based downstream browsers should also be updated once vendor fixes are available.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

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

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

3 SOURCESView more in app

cyber security newsNews

May 7, 2026

Google Chrome 148 Released with 127 Security Fixes, Three Critical Vulnerabilities Patched

An out-of-bounds read and write vulnerability in Chrome's V8 JavaScript engine.

cyberthroneNews

May 7, 2026

Google 148 Stable Channel Released with 127 Bug fixes - TheCyberThrone

A high-severity out-of-bounds read/write vulnerability in Chrome's V8 JavaScript engine.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

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 signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

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

Social activity1