CVE-2026-9914

Description

Insufficient validation of untrusted input in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process 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 < 148.0.7778.216

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- Proof of Concept for CVE-2026-9914 -->
<!-- This PoC attempts to trigger the ANGLE validation issue -->
<!DOCTYPE html>
<html>
<head><title>CVE-2026-9914 PoC</title></head>
<body>
<canvas id="glCanvas"></canvas>
<script>
    // Get WebGL context to interact with ANGLE
    const canvas = document.getElementById('glCanvas');
    const gl = canvas.getContext('webgl');

    if (!gl) {
        console.log('WebGL not supported');
    } else {
        // Crafted shader source to test input validation
        const vsSource = `
            attribute vec4 aVertexPosition;
            void main() {
                gl_Position = aVertexPosition;
            }
        `;
        
        // Potential malicious fragment shader targeting ANGLE
        const fsSource = `
            precision mediump float;
            void main() {
                gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
            }
        `;

        function loadShader(gl, type, source) {
            const shader = gl.createShader(type);
            gl.shaderSource(shader, source);
            gl.compileShader(shader);
            return shader;
        }

        const vertexShader = loadShader(gl, gl.VERTEX_SHADER, vsSource);
        const fragmentShader = loadShader(gl, gl.FRAGMENT_SHADER, fsSource);

        const shaderProgram = gl.createProgram();
        gl.attachShader(shaderProgram, vertexShader);
        gl.attachShader(shaderProgram, fragmentShader);
        gl.linkProgram(shaderProgram);

        // Execute the draw call
        gl.useProgram(shaderProgram);
        console.log("PoC executed. Exploit requires renderer compromise.");
    }
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-9914
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-9914
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-9914/
[4] VulDB https://vuldb.com/cve/CVE-2026-9914
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html
[6] https://issues.chromium.org/issues/500047428

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-9914", "sourceIdentifier": "[email protected]", "published": "2026-05-28T23:16:49.487", "lastModified": "2026-05-29T16:16:37.300", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Insufficient validation of untrusted input in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process 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-20"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/500047428", "source": "[email protected]"}]}}