Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-07-06 05:47

Modified

2026-07-06 06:18

Summary

Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270

Details

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.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "activemq",
        "purl": "pkg:bitnami/activemq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.19.7"
            },
            {
              "fixed": "5.19.8"
            },
            {
              "introduced": "6.2.6"
            },
            {
              "fixed": "6.2.7"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-50750"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*"
    ],
    "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\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": "BIT-activemq-2026-50750",
  "modified": "2026-07-06T06:18:57.499Z",
  "published": "2026-07-06T05:47:14.523Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50750"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270"
}

CVE-2026-50750 (GCVE-0-2026-50750)

Vulnerability from cvelistv5 – Published: 2026-06-30 09:51 – Updated: 2026-06-30 13:21

Title

Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270

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.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

Denial of Service via Out of Memory
CWE-400 - Uncontrolled Resource Consumption

Assigner

apache

References

1 reference

URL	Tags
https://lists.apache.org/thread/nhkmbdym61yp6wwy0…	vendor-advisory

Impacted products

3 products

Vendor	Product	Version
Apache Software Foundation	Apache ActiveMQ Broker	Affected: 5.19.7 , < 5.19.8 (semver) Affected: 6.2.6 , < 6.2.7 (semver)
Apache Software Foundation	Apache ActiveMQ	Affected: 5.19.7 , < 5.19.8 (semver) Affected: 6.2.6 , < 6.2.7 (semver)
Apache Software Foundation	Apache ActiveMQ All	Affected: 5.19.7 , < 5.19.8 (semver) Affected: 6.2.6 , < 6.2.7 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-50750",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-30T13:21:40.113842Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-400",
                "description": "CWE-400 Uncontrolled Resource Consumption",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-30T13:21:45.456Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.activemq:activemq-broker",
          "product": "Apache ActiveMQ Broker",
          "vendor": "Apache Software Foundation",
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              "lessThan": "5.19.8",
              "status": "affected",
              "version": "5.19.7",
              "versionType": "semver"
            },
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              "lessThan": "6.2.7",
              "status": "affected",
              "version": "6.2.6",
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            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.activemq:apache-activemq",
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              "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": [
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              "lessThan": "5.19.8",
              "status": "affected",
              "version": "5.19.7",
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            },
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              "version": "6.2.6",
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      "source": {
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    "datePublished": "2026-06-30T09:51:57.035Z",
    "dateReserved": "2026-06-06T19:20:20.134Z",
    "dateUpdated": "2026-06-30T13:21:45.456Z",
    "state": "PUBLISHED"
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

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Vulnerability from bitnami_vulndb

CVE-2026-50750 (GCVE-0-2026-50750)

Tags

Sightings

Nomenclature