CVE-2026-8525

Description

Heap buffer overflow in ANGLE in Google Chrome on Mac prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

CVSS Details

CVSS Score

8.3

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Google Chrome for Mac < 148.0.7778.168

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!--
PoC for CVE-2026-8525: Conceptual Heap Buffer Overflow in ANGLE
This code attempts to trigger the graphics processing vulnerability via WebGL.
-->
<!DOCTYPE html>
<html>
<head>
    <title>CVE-2026-8525 PoC</title>
</head>
<body>
    <h1>Testing Chrome ANGLE Heap Overflow</h1>
    <canvas id="glCanvas" width="640" height="480"></canvas>
    <script>
        const canvas = document.getElementById('glCanvas');
        const gl = canvas.getContext('webgl');

        if (!gl) {
            console.log('WebGL not supported');
        } else {
            // Attempt to trigger buffer overflow via shader compilation or texture upload
            // Specific malformed data would be required for actual exploitation
            const vsSource = `
                attribute vec4 aVertexPosition;
                void main() {
                    gl_Position = aVertexPosition;
                }
            `;
            const fsSource = `
                void main() {
                    gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);
                }
            `;
            
            // Simplified setup to interact with ANGLE
            const shaderProgram = gl.createProgram();
            // ... (Shader compilation and linking logic)
            // Malformed input injection point
            gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
        }
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8525
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8525
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8525/
[4] VulDB https://vuldb.com/cve/CVE-2026-8525
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
[6] https://issues.chromium.org/issues/497928952

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8525", "sourceIdentifier": "[email protected]", "published": "2026-05-14T20:17:13.290", "lastModified": "2026-05-14T22:16:46.700", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Heap buffer overflow in ANGLE in Google Chrome on Mac prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape 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:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "baseScore": 8.3, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-122"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/497928952", "source": "[email protected]"}]}}