CVE-2026-40446

Description

Access of resource using incompatible type ('type confusion') vulnerability in Samsung Open Source Escargot allows Pointer Manipulation.This issue affects Escargot: 97e8115ab1110bc502b4b5e4a0c689a71520d335.

CVSS Details

CVSS Score

6.9

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Samsung Escargot Commit 97e8115ab1110bc502b4b5e4a0c689a71520d335

PoC / Exploit Code

⚠ For Security Research Only

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

python

// PoC for Type Confusion in Samsung Escargot
// This is a conceptual demonstration.

function triggerTypeConfusion() {
    // Setup objects to manipulate memory structures
    let obj1 = {};
    let obj2 = {};

    // Hypothetical manipulation leading to type confusion
    // In a real scenario, specific engine features would be used to corrupt type tags
    try {
        // Force the engine to treat a value as an incompatible type
        let corrupted_array = [1.1, 2.2, 3.3];
        let confusion_trigger = {};
        
        // Simulate the corruption of the array's type pointer
        // This leads to treating the double array as an object array
        corruption_helper(corrupted_array, confusion_trigger);
        
        // Attempt to write to an arbitrary address via the confused object
        corrupted_array[0] = 0x41414141; 
        
        console.log("Type Confusion Triggered.");
    } catch (e) {
        console.log("Exploit failed or crashed: " + e);
    }
}

triggerTypeConfusion();

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-40446
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-40446
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-40446/
[4] VulDB https://vuldb.com/cve/CVE-2026-40446
[5] https://github.com/Samsung/escargot/pull/1554

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-40446", "sourceIdentifier": "[email protected]", "published": "2026-04-13T05:16:04.863", "lastModified": "2026-04-13T15:01:43.663", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Access of resource using incompatible type ('type confusion') vulnerability in Samsung Open Source Escargot allows Pointer Manipulation.This issue affects Escargot: 97e8115ab1110bc502b4b5e4a0c689a71520d335."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H", "baseScore": 6.9, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.4, "impactScore": 5.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-843"}]}], "references": [{"url": "https://github.com/Samsung/escargot/pull/1554", "source": "[email protected]"}]}}