Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service_CVE-2026-49432

{
    "lastseen": "",
    "description": "Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp.\n\nA remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can keep streaming body bytes and grow the per-connection command buffer beyond configured limits to cause OOM. For the blocking STOMP protocol, an error will instead force abnormal transport exception handling for the affected connection and closure.\nThis issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Stomp: before 5.19.8, from 6.0.0 before 6.2.7.\n\n\n\n\nUsers are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.",
    "published": "2026-06-30T09:54:38.991Z",
    "modified": "2026-06-30T15:55:36.075Z",
    "type": "cve",
    "title": "Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service",
    "source": "apache",
    "references": "https://lists.apache.org/thread/fsjb26605syqr8xks249h8gkp86t55d2",
    "id": "CVE-2026-49432",
    "bulletinFamily": "",
    "cwe": [
        "CWE-20"
    ],
    "cvelist": null,
    "sourceData": "Apache Software Foundation Apache ActiveMQ 0\nApache Software Foundation Apache ActiveMQ 6.0.0\nApache Software Foundation Apache ActiveMQ All 0\nApache Software Foundation Apache ActiveMQ All 6.0.0\nApache Software Foundation Apache ActiveMQ Stomp 0\nApache Software Foundation Apache ActiveMQ Stomp 6.0.0",
    "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": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "confidentialityImpact": "",
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        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Apache ActiveMQ",
    "version": "0",
    "vendor": "Apache Software Foundation",
    "ai_description": "",
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    "ai_score": 0
}