{
  "affected": [
    {
      "database_specific": {
        "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-9qj4-v6r6-3wmx/GHSA-9qj4-v6r6-3wmx.json"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.activemq:activemq-broker",
        "purl": "pkg:maven/org.apache.activemq/activemq-broker"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.19.7"
            },
            {
              "fixed": "5.19.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.19.7"
      ]
    },
    {
      "database_specific": {
        "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-9qj4-v6r6-3wmx/GHSA-9qj4-v6r6-3wmx.json"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.activemq:activemq-broker",
        "purl": "pkg:maven/org.apache.activemq/activemq-broker"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.6"
            },
            {
              "fixed": "6.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.2.6"
      ]
    },
    {
      "database_specific": {
        "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-9qj4-v6r6-3wmx/GHSA-9qj4-v6r6-3wmx.json"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.activemq:apache-activemq",
        "purl": "pkg:maven/org.apache.activemq/apache-activemq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.19.7"
            },
            {
              "fixed": "5.19.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.19.7"
      ]
    },
    {
      "database_specific": {
        "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-9qj4-v6r6-3wmx/GHSA-9qj4-v6r6-3wmx.json"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.activemq:apache-activemq",
        "purl": "pkg:maven/org.apache.activemq/apache-activemq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.6"
            },
            {
              "fixed": "6.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.2.6"
      ]
    },
    {
      "database_specific": {
        "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-9qj4-v6r6-3wmx/GHSA-9qj4-v6r6-3wmx.json"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.activemq:activemq-all",
        "purl": "pkg:maven/org.apache.activemq/activemq-all"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.19.7"
            },
            {
              "fixed": "5.19.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.19.7"
      ]
    },
    {
      "database_specific": {
        "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-9qj4-v6r6-3wmx/GHSA-9qj4-v6r6-3wmx.json"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.activemq:activemq-all",
        "purl": "pkg:maven/org.apache.activemq/activemq-all"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.6"
            },
            {
              "fixed": "6.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.2.6"
      ]
    }
  ],
  "aliases": [
    "BIT-activemq-2026-50750",
    "CVE-2026-50750"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-11-04T16:07:51Z",
    "nvd_published_at": "2026-06-30T11:16:29Z",
    "severity": "HIGH"
  },
  "details": "Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All.\n\nFollowing the fix for  CVE-2026-49270 an unauthenticated attacker can now cause broker OOM by sending an repeated BrokerInfo commands without sending a ConnectionInfo, until the broker will crash with OOM.\nThis issue affects Apache ActiveMQ Broker: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ All: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7.\n\nUsers are recommended to upgrade to version 6.2.7, which fixes the issue.",
  "id": "GHSA-9qj4-v6r6-3wmx",
  "modified": "2026-11-04T16:26:03.579683188Z",
  "published": "2026-06-30T12:31:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50750"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/activemq/pull/2083"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/activemq/commit/685ab0b7a4618abd25be7d64c3355401581b69e5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/activemq/commit/80562ea8d327b7f538de1ff7672f158fe2abc4c1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/activemq/commit/f3a365e74e85dee6042f324156ace661e0d97f2d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/activemq"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/activemq/releases/tag/activemq-5.19.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/activemq/releases/tag/activemq-6.2.7"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All have a Denial of Service via Out of Memory vulnerability"
}