FKIE_CVE-2026-50750

Vulnerability from fkie_nvd - Published: 2026-06-30 11:16 - Updated: 2026-07-02 18:42
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
security@apache.orghttps://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87krVendor Advisory, Mailing List
Impacted products
Vendor Product Version
apache activemq 5.19.7
apache activemq 6.2.6
apache activemq_broker 5.19.7
apache activemq_broker 6.2.6
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.activemq:activemq-broker",
          "product": "Apache ActiveMQ Broker",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "5.19.8",
              "status": "affected",
              "version": "5.19.7",
              "versionType": "semver"
            },
            {
              "lessThan": "6.2.7",
              "status": "affected",
              "version": "6.2.6",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.activemq:apache-activemq",
          "product": "Apache ActiveMQ",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "5.19.8",
              "status": "affected",
              "version": "5.19.7",
              "versionType": "semver"
            },
            {
              "lessThan": "6.2.7",
              "status": "affected",
              "version": "6.2.6",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.activemq:activemq-all",
          "product": "Apache ActiveMQ All",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "5.19.8",
              "status": "affected",
              "version": "5.19.7",
              "versionType": "semver"
            },
            {
              "lessThan": "6.2.7",
              "status": "affected",
              "version": "6.2.6",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:activemq:5.19.7:*:*:*:*:*:*:*",
              "matchCriteriaId": "30C93456-D814-415B-B251-C2B4F8D0824D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:activemq:6.2.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "2AD1F411-C753-4C8D-8854-0641A1555544",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:activemq_broker:5.19.7:*:*:*:*:*:*:*",
              "matchCriteriaId": "9EE64253-BB81-4AFC-99B4-FA0F3F24CBFA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:activemq_broker:6.2.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "772DA95D-2A5D-4DC5-9FA6-2B23082702CB",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\u00a0an unauthenticated attacker can now cause broker OOM by sending an repeated BrokerInfo commands without sending\u00a0a 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": "CVE-2026-50750",
  "lastModified": "2026-07-02T18:42:47.253",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-50750",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-30T13:21:40.113842Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-30T11:16:29.933",
  "references": [
    {
      "source": "security@apache.org",
      "tags": [
        "Vendor Advisory",
        "Mailing List"
      ],
      "url": "https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.