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GHSA-W3W2-MPP5-92GM

Vulnerability from github – Published: 2026-04-24 12:30 – Updated: 2026-04-24 12:30

Details

Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.

An authenticated attacker may bypass the fix in CVE-2026-34197 by adding a connector using an HTTP Discovery transport via BrokerView.addNetworkConnector or BrokerView.addConnector through Jolokia if the activemq-http module is on the classpath. A malicious HTTP endpoint can return a VM transport through the HTTP URI which will bypass the validation added in CVE-2026-34197. The attacker can then use the VM transport's brokerConfig parameter to load a remote Spring XML application context using ResourceXmlApplicationContext. Because Spring's ResourceXmlApplicationContext instantiates all singleton beans before the BrokerService validates the configuration, arbitrary code execution occurs on the broker's JVM through bean factory methods such as Runtime.exec().

This issue affects Apache ActiveMQ Broker: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ All: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5.

Users are recommended to upgrade to version 5.19.6 or 6.2.5, which fixes the issue.

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  "affected": [],
  "aliases": [
    "CVE-2026-40466"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T11:16:22Z",
    "severity": null
  },
  "details": "Improper Input Validation, Improper Control of Generation of Code (\u0027Code Injection\u0027) vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.\n\n\n\nAn authenticated attacker may bypass the fix in CVE-2026-34197 by adding a connector using an HTTP Discovery transport via\u00a0BrokerView.addNetworkConnector or\u00a0BrokerView.addConnector through\u00a0Jolokia if the activemq-http module is on the classpath.\nA malicious HTTP endpoint can return a VM transport through the HTTP URI which will bypass the validation added in CVE-2026-34197. The attacker can then use the VM transport\u0027s brokerConfig parameter to load a remote Spring XML application context using ResourceXmlApplicationContext.\nBecause Spring\u0027s ResourceXmlApplicationContext instantiates all singleton beans before the BrokerService validates the configuration, arbitrary code execution occurs on the broker\u0027s JVM through bean factory methods such as Runtime.exec().\n\n\nThis issue affects Apache ActiveMQ Broker: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ All: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5.\n\nUsers are recommended to upgrade to version 5.19.6 or 6.2.5, which fixes the issue.",
  "id": "GHSA-w3w2-mpp5-92gm",
  "modified": "2026-04-24T12:30:27Z",
  "published": "2026-04-24T12:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40466"
    },
    {
      "type": "WEB",
      "url": "https://activemq.apache.org/security-advisories.data/CVE-2026-34197-announcement.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-40466 (GCVE-0-2026-40466)

Vulnerability from cvelistv5 – Published: 2026-04-24 10:15 – Updated: 2026-04-24 18:17

Title

Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Possible bypass of CVE-2026-34197 via HTTP discovery second-stage URI

Summary

Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An authenticated attacker may bypass the fix in CVE-2026-34197 by adding a connector using an HTTP Discovery transport via BrokerView.addNetworkConnector or BrokerView.addConnector through Jolokia if the activemq-http module is on the classpath. A malicious HTTP endpoint can return a VM transport through the HTTP URI which will bypass the validation added in CVE-2026-34197. The attacker can then use the VM transport's brokerConfig parameter to load a remote Spring XML application context using ResourceXmlApplicationContext. Because Spring's ResourceXmlApplicationContext instantiates all singleton beans before the BrokerService validates the configuration, arbitrary code execution occurs on the broker's JVM through bean factory methods such as Runtime.exec(). This issue affects Apache ActiveMQ Broker: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ All: before 5.19.6, from 6.0.0 before 6.2.5; Apache ActiveMQ: before 5.19.6, from 6.0.0 before 6.2.5. Users are recommended to upgrade to version 5.19.6 or 6.2.5, which fixes the issue.

Severity ?

No CVSS data available.

CWE

CWE-20 - Improper Input Validation
CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

apache

References

URL

Tags

https://activemq.apache.org/security-advisories.d…

vendor-advisory

Impacted products

Vendor

Product

Version

Apache Software Foundation

Apache ActiveMQ Broker

Affected: 0 , < 5.19.6 (semver)
Affected: 6.0.0 , < 6.2.5 (semver)

	Apache Software Foundation	Apache ActiveMQ All	Affected: 0 , < 5.19.6 (semver) Affected: 6.0.0 , < 6.2.5 (semver)
	Apache Software Foundation	Apache ActiveMQ	Affected: 0 , < 5.19.6 (semver) Affected: 6.0.0 , < 6.2.5 (semver)

Credits

Fatih Ersinadim gggggggga

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-W3W2-MPP5-92GM

CVE-2026-40466 (GCVE-0-2026-40466)

Tags

Sightings

Nomenclature