CVE-2026-9872

Description

Out of bounds write in GPU in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

CVSS Details

CVSS Score

9.6

Severity

CRITICAL

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Google Chrome on Android < 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-2026-9872 -->
<!-- This PoC targets the GPU component to trigger the out-of-bounds write -->
<!DOCTYPE html>
<html>
<head><title>CVE-2026-9872 PoC</title></head>
<body>
<script>
    // Initialize WebGL context to interact with GPU
    var canvas = document.createElement('canvas');
    var gl = canvas.getContext('webgl');
    
    if (gl) {
        // Crafted shader or buffer operation to trigger the vulnerability
        // Specific implementation depends on the undisclosed GPU bug details
        var buffer = gl.createBuffer();
        gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
        // Malicious data injection to cause OOB write
        var data = new Float32Array(0x100000); // Large buffer to manipulate memory
        gl.bufferData(gl.ARRAY_BUFFER, data, gl.STATIC_DRAW);
        
        // Trigger the rendering
        console.log("Payload sent to GPU context.");
    } else {
        console.log("WebGL not supported.");
    }
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-9872
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-9872
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-9872/
[4] VulDB https://vuldb.com/cve/CVE-2026-9872
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html
[6] https://issues.chromium.org/issues/505077859

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-9872", "sourceIdentifier": "[email protected]", "published": "2026-05-28T23:16:45.140", "lastModified": "2026-05-29T16:16:33.380", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Out of bounds write in GPU in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)"}], "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:C/C:H/I:H/A:H", "baseScore": 9.6, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-787"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/505077859", "source": "[email protected]"}]}}