ghsa-9qj4-v6r6-3wmx

CVSS 7.5 osv_maven
Description

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. Following 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. This 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. Users are recommended to upgrade to version 6.2.7, which fixes the issue.

Timeline
Published
unknown
Last Modified
unknown
CVSS Details

CVSS details not available.

Affected Products

No product information available.

Weaknesses (CWE)
CWE-400
References
Linked Vulnerabilities

No linked vulnerabilities found.

{
  "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"
}
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