CVE-2026-8581

Description

Use after free in GPU in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Medium)

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)

No configuration data available.

Google Chrome < 148.0.7778.168

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!--
PoC Concept for CVE-2026-8581
This is a generic template to trigger GPU operations.
Specific memory corruption logic depends on the internal Chrome GPU bug.
-->
<html>
<head>
<title>CVE-2026-8581 PoC</title>
</head>
<body>
<script type="text/javascript">
  // Function to attempt triggering the GPU UAF
  function triggerUAF() {
    try {
      // Create a canvas element to access GPU context
      var canvas = document.createElement('canvas');
      var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');

      if (gl) {
        console.log("GPU Context acquired");
        
        // Create a buffer to manipulate GPU memory
        var buffer = gl.createBuffer();
        gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
        
        // Simulate heavy data operations to stress memory management
        var data = new Float32Array(1024 * 1024);
        gl.bufferData(gl.ARRAY_BUFFER, data, gl.DYNAMIC_DRAW);
        
        // Loop to potentially trigger race condition or UAF condition
        // Note: Actual exploitation requires precise timing and memory layout
        for (var i = 0; i < 1000; i++) {
          gl.bufferSubData(gl.ARRAY_BUFFER, 0, data);
          // Hypothetical operation that might free underlying object incorrectly
          if (i === 500) {
            // In a real exploit, specific WebGL calls would go here
            // to cause the Use-After-Free in the GPU process.
          }
        }
      } else {
        console.log("WebGL not supported");
      }
    } catch (e) {
      console.error("Exception during PoC execution: " + e);
    }
  }

  // Execute the trigger
  window.onload = triggerUAF;
</script>
<p>CVE-2026-8581 PoC: Check console for GPU activity.</p>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8581
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8581
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8581/
[4] VulDB https://vuldb.com/cve/CVE-2026-8581
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
[6] https://issues.chromium.org/issues/497292072

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8581", "sourceIdentifier": "[email protected]", "published": "2026-05-14T20:17:20.470", "lastModified": "2026-05-14T21:19:23.923", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in GPU in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox 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: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-416"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/497292072", "source": "[email protected]"}]}}