CVE-2026-8583

Description

Insufficient policy enforcement in WebXR in Google Chrome on Android prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)

CVSS Details

CVSS Score

5.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Google Chrome for Android < 148.0.7778.168

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- PoC for CVE-2026-8583: WebXR Information Disclosure -->
<!-- This is a conceptual proof of concept demonstrating the trigger vector -->
<!DOCTYPE html>
<html>
<head>
    <title>WebXR Memory Disclosure PoC</title>
</head>
<body>
    <script>
        // Check if WebXR is supported
        if (navigator.xr) {
            console.log("WebXR is supported. Attempting to exploit policy enforcement...");
            
            // Request an immersive-ar session (The crafted HTML page mentioned in CVE)
            navigator.xr.requestSession('immersive-ar').then((session) => {
                
                // In a real exploit scenario, the attacker would manipulate the session
                // or the renderer process (assumed compromised) to read memory.
                // This code simulates the entry point for the attack.
                
                session.requestReferenceSpace('local').then((referenceSpace) => {
                    // Attempt to trigger the insufficient policy enforcement
                    // leading to memory read.
                    console.log("Reference space obtained. Potential memory read vector active.");
                    
                    // Hypothetical memory read operation would occur here
                    // exploiting the lack of policy checks.
                });
            }).catch(err => {
                console.log("Session request failed or interaction required: " + err);
            });
        } else {
            console.log("WebXR not supported on this device.");
        }
    </script>
    <h1>CVE-2026-8583 PoC</h1>
    <p>Requires a compromised renderer process context to succeed in leaking memory.</p>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8583
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8583
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8583/
[4] VulDB https://vuldb.com/cve/CVE-2026-8583
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
[6] https://issues.chromium.org/issues/497975477

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8583", "sourceIdentifier": "[email protected]", "published": "2026-05-14T20:17:20.703", "lastModified": "2026-05-14T22:16:51.373", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Insufficient policy enforcement in WebXR in Google Chrome on Android prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process 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:H/PR:N/UI:R/S:U/C:H/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.6, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-693"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/497975477", "source": "[email protected]"}]}}