Memory Exhaustion via Unbounded Content-Length_CVE-2026-5440

{
    "lastseen": "",
    "description": "A memory exhaustion vulnerability exists in the HTTP server due to unbounded use of the `Content-Length` header.  The server allocates memory directly based on the attacker supplied header value without enforcing an upper limit. A crafted HTTP request containing an extremely large `Content-Length` value can trigger excessive memory allocation and server termination, even without sending a request body.",
    "published": "2026-04-09T14:43:55.684Z",
    "modified": "2026-04-14T16:34:31.991Z",
    "type": "cve",
    "title": "Memory Exhaustion via Unbounded Content-Length",
    "source": "certcc",
    "references": "https://www.orthanc-server.com/\nhttps://www.machinespirits.de/\nhttps://kb.cert.org/vuls/id/536588",
    "id": "CVE-2026-5440",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Orthanc DICOM Server 0",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "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": "DICOM Server",
    "version": "0",
    "vendor": "Orthanc",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}