Hardcoded Cryptographic Keys and Weak IV Generation in Linqi Application_CVE-2026-11347

{
    "lastseen": "",
    "description": "The linqi application contains hardcoded cryptographic keys. Additionally, the application uses a weak algorithm with a limited ASCII charset to dynamically generate Initialization Vectors (IVs) for AES/CBC encryption, making known-plaintext attacks feasible. An attacker with local access can leverage these vulnerabilities to decrypt sensitive obfuscated strings, including ConnectionString values containing database credentials from appsettings.json.",
    "published": "2026-06-05T10:18:35.703Z",
    "modified": "2026-06-05T10:18:35.703Z",
    "type": "cve",
    "title": "Hardcoded Cryptographic Keys and Weak IV Generation in Linqi Application",
    "source": "linqi",
    "references": "https://linqi.help/en/reference/security/security-advisories/#security-advisory-hardcoded-cryptographic-keys-and-weak-iv-generation-in-the-linqi-application",
    "id": "CVE-2026-11347",
    "bulletinFamily": "",
    "cwe": [
        "CWE-321",
        "CWE-338"
    ],
    "cvelist": null,
    "sourceData": "linqi GmbH linqi 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.5,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "linqi",
    "version": "0",
    "vendor": "linqi GmbH",
    "ai_description": "Hardcoded cryptographic keys and weak IV generation in the linqi application allow for known-plaintext attacks and decryption of sensitive data.",
    "ai_severity": "High",
    "ai_vendor": "linqi GmbH",
    "ai_product": "linqi",
    "ai_version": "0",
    "ai_score": 8.5
}