CVE-2026-108949

Full vulnerability record from the local CVENow database.

Description

Denial of Service via OOM vulnerability in Apache ActiveMQ, ActiveMQ Broker. An authenticated OpenWire client that sends a ConsumerInfo for a temporary queue/topic owned by another connection is rejected with InvalidDestinationException, but the rejected Subscription is left behind in the region's subscriptions map. Repeating the request leaks broker heap until OOM because the broker does not clean up the rejected subscriptions in the map. This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; ActiveMQ Broker: from 6.0.0 before 6.3.3, before 5.19.12. Users are recommended to upgrade to version 6.4.0, 6.3.3, or 5.19.12, which fixes the issue.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-04 10:17:24.160000

Last modified

2026-11-04 10:17:24.160000

View original CVE JSON

{
  "id": "CVE-2026-108949",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-04T10:17:24.160",
  "lastModified": "2026-11-04T10:17:24.160",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Denial of Service via OOM vulnerability in Apache ActiveMQ, ActiveMQ Broker.\n\n\n\nAn authenticated OpenWire client that sends a ConsumerInfo for a temporary queue/topic owned by another connection is rejected with InvalidDestinationException, but the rejected Subscription is left behind in the region's subscriptions map. Repeating the request leaks broker heap until OOM because the broker does not clean up the rejected subscriptions in the map.\n\n\n\nThis issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; ActiveMQ Broker: from 6.0.0 before 6.3.3, before 5.19.12.\n\n\n\nUsers are recommended to upgrade to version 6.4.0, 6.3.3, or 5.19.12, which fixes the issue."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache ActiveMQ",
          "defaultStatus": "unaffected",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "packageName": "org.apache.activemq:activemq-broker",
          "packageURL": "pkg:maven/org.apache.activemq/activemq-broker",
          "versions": [
            {
              "version": "6.0.0",
              "lessThan": "6.3.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.19.12",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apache Software Foundation",
          "product": "ActiveMQ Broker",
          "defaultStatus": "unaffected",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "packageName": "org.apache.activemq:activemq-broker",
          "packageURL": "pkg:maven/org.apache.activemq/activemq-broker",
          "versions": [
            {
              "version": "6.0.0",
              "lessThan": "6.3.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.19.12",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://lists.apache.org/thread/2l1jbc8j88w1n9bd44vm9bjtj9t3o80n",
      "source": "[email protected]"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/11/03/18",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}