CVE-2026-8570

Description

Type Confusion in V8 in Google Chrome prior to 148.0.7778.168 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 < 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-2026-8570
// This is a generic example of triggering type confusion in V8
-->
<html>
<body>
<script type="text/javascript">
    // Simulating the trigger for Type Confusion
    function trigger_exploit() {
        try {
            // Crafted object to confuse the type system
            let obj = {};
            // Malicious array manipulation to exploit the confusion
            let buffer = new ArrayBuffer(0x100);
            let view = new DataView(buffer);
            
            // Attempt to read memory via the confused type
            // In a real scenario, this would leak memory addresses
            console.log("Attempting to read memory offset...");
            let leak = view.getUint32(0x50, true);
            console.log("Leaked data: " + leak);
        } catch (e) {
            console.error("Exploit failed: " + e.message);
        }
    }
    
    window.onload = trigger_exploit;
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8570
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8570
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8570/
[4] VulDB https://vuldb.com/cve/CVE-2026-8570
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
[6] https://issues.chromium.org/issues/490353576

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8570", "sourceIdentifier": "[email protected]", "published": "2026-05-14T20:17:19.260", "lastModified": "2026-05-14T22:16:50.443", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Type Confusion in V8 in Google Chrome prior to 148.0.7778.168 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": "Secondary", "description": [{"lang": "en", "value": "CWE-843"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/490353576", "source": "[email protected]"}]}}