CVE-2026-59878

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Source
https://cve.org/CVERecord?id=CVE-2026-59878
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59878.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59878
Aliases
Downstream
Published
2026-07-28T13:33:54.909Z
Modified
2026-08-17T08:11:07.982479507Z
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 AMQP, Apache ActiveMQ, Apache ActiveMQ All: AMQP NIO negative frame size validation bypass leading to DoS
Details

Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.

A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections. This issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.

Users are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.

Database specific 
{
    "cwe_ids": [
        "CWE-20"
    ],
    "cna_assigner": "apache",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "fixed": "5.19.9"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.8"
                },
                {
                    "fixed": "5.19.9"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.8"
                },
                {
                    "fixed": "5.19.9"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.8"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "fixed": "5.19.9"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.8"
                },
                {
                    "fixed": "5.19.9"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.8"
                },
                {
                    "fixed": "5.19.9"
                },
                {
                    "introduced": "6.0.0"
                },
                {
                    "fixed": "6.2.8"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59878.json"
}
References

Affected packages

Git / github.com/apache/activemq

Affected ranges

Type
GIT
Repo
https://github.com/apache/activemq
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
958f2e492e9ae853a2559f9e27b9ad5678874bb9
Introduced
14bac13f40958c1a1d3d198051eed32facc4abd1
Fixed
39cc12e6c177083d7188f6278fa4e93464d4eeed
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.19.9"
        },
        {
            "introduced": "6.0.0"
        },
        {
            "fixed": "6.2.8"
        }
    ]
}

Affected versions

activemq-5.*
activemq-5.10.0
activemq-5.11.0
activemq-5.12.0
activemq-5.13.0
activemq-5.14.0
activemq-5.15.0
activemq-5.16.0
activemq-5.18.0
activemq-5.18.1
activemq-5.18.2
activemq-5.18.3
activemq-5.18.4
activemq-5.18.5
activemq-5.18.6
activemq-5.19.0
activemq-5.19.1
activemq-5.19.2
activemq-5.9.0
activemq-6.*
activemq-6.0.0
activemq-6.1.0
activemq-6.1.1
activemq-6.1.2
activemq-6.2.0
activemq-6.2.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59878.json"