CVE-2026-50750

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Source
https://cve.org/CVERecord?id=CVE-2026-50750
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50750.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-50750
Aliases
Downstream
Published
2026-06-30T09:51:57.035Z
Modified
2026-07-08T08:05:21.821633842Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
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.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "5.19.7"
                },
                {
                    "fixed": "5.19.8"
                },
                {
                    "introduced": "6.2.6"
                },
                {
                    "fixed": "6.2.7"
                },
                {
                    "introduced": "5.19.7"
                },
                {
                    "fixed": "5.19.8"
                },
                {
                    "introduced": "6.2.6"
                },
                {
                    "fixed": "6.2.7"
                },
                {
                    "introduced": "5.19.7"
                },
                {
                    "fixed": "5.19.8"
                },
                {
                    "introduced": "6.2.6"
                },
                {
                    "fixed": "6.2.7"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "5.19.7"
                },
                {
                    "fixed": "5.19.8"
                },
                {
                    "introduced": "6.2.6"
                },
                {
                    "fixed": "6.2.7"
                },
                {
                    "introduced": "5.19.7"
                },
                {
                    "fixed": "5.19.8"
                },
                {
                    "introduced": "6.2.6"
                },
                {
                    "fixed": "6.2.7"
                },
                {
                    "introduced": "5.19.7"
                },
                {
                    "fixed": "5.19.8"
                },
                {
                    "introduced": "6.2.6"
                },
                {
                    "fixed": "6.2.7"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50750.json",
    "cna_assigner": "apache"
}
References

Affected packages

Git / github.com/apache/activemq

Affected ranges

Type
GIT
Repo
https://github.com/apache/activemq
Events
Introduced
fa56d21ff2d14b99928917cc0bef2e8830acf15f
Last affected
bb9523b9847fe235a971256fec7ce6bb5670d14d
Database specific 
{
    "source": "CPE_STRING",
    "cpe": [
        "cpe:2.3:a:apache:activemq:5.19.7:*:*:*:*:*:*:*",
        "cpe:2.3:a:apache:activemq:6.2.6:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "5.19.7"
        },
        {
            "last_affected": "5.19.7"
        },
        {
            "introduced": "6.2.6"
        },
        {
            "last_affected": "6.2.6"
        }
    ]
}

Affected versions

5.*
5.19.7
6.*
6.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50750.json"