Vulnerability-Lookup

GHSA-9QJ4-V6R6-3WMX

Vulnerability from github – Published: 2026-06-30 12:31 – Updated: 2026-06-30 15:30

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.

Severity

7.5 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-50750"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "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\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": "GHSA-9qj4-v6r6-3wmx",
  "modified": "2026-06-30T15:30:44Z",
  "published": "2026-06-30T12:31:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50750"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

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              "attackVector": "NETWORK",
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              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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                "timestamp": "2026-06-30T13:21:40.113842Z",
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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.

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GHSA-9QJ4-V6R6-3WMX

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

Tags

Sightings

Nomenclature