Read the docs
TI-2026-37397 Aliases CVE-2026-50734GHSA-7259-vf48-52q3

Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire…

Priority MEDIUM 40CWE-789Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 3 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-789.

Summary

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All. An unauthenticated network attacker can cause a broker DoS by sending a crafted WireFormatInfo frame with a malicious large size value. The value is not validate and causes the broker to attempt allocation during pre-auth negotiation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0074 54th percentileScored 2026-11-07
Fix Partial Apache ActiveMQ Client (Apache Software Foundation): 5.19.8, 6.2.7Apache ActiveMQ (Apache Software Foundation): 5.19.8, 6.2.7+4 more productsRed Hat: 3 advisoriesRed Hat: 3 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache ActiveMQ Clientbefore 5.19.8; 6.0.0 to before 6.2.75.19.8, 6.2.7Patch availableCNA
ApacheApache ActiveMQbefore 5.19.8; 6.0.0 to before 6.2.75.19.8, 6.2.7Patch availableCNA
ApacheApache ActiveMQ Allbefore 5.19.8; 6.0.0 to before 6.2.75.19.8, 6.2.7Patch availableCNA
—org.apache.activemq:activemq-client (Maven)before 5.19.85.19.8Patch availableGHSA-7259-vf48-52q3
—org.apache.activemq:activemq-client (Maven)6.0.0 to before 6.2.76.2.7Patch availableGHSA-7259-vf48-52q3
—org.apache.activemq:apache-activemq (Maven)before 5.19.85.19.8Patch availableGHSA-7259-vf48-52q3
—org.apache.activemq:apache-activemq (Maven)6.0.0 to before 6.2.76.2.7Patch availableGHSA-7259-vf48-52q3
—org.apache.activemq:activemq-all (Maven)before 5.19.85.19.8Patch availableGHSA-7259-vf48-52q3
—org.apache.activemq:activemq-all (Maven)6.0.0 to before 6.2.76.2.7Patch availableGHSA-7259-vf48-52q3
  • Apache ActiveMQ Client VendorApache Affected before 5.19.8; 6.0.0 to before 6.2.7 Fixed in 5.19.8, 6.2.7 Patch available CNA
  • Apache ActiveMQ VendorApache Affected before 5.19.8; 6.0.0 to before 6.2.7 Fixed in 5.19.8, 6.2.7 Patch available CNA
  • Apache ActiveMQ All VendorApache Affected before 5.19.8; 6.0.0 to before 6.2.7 Fixed in 5.19.8, 6.2.7 Patch available CNA
  • org.apache.activemq:activemq-client (Maven) Vendor— Affected before 5.19.8 Fixed in 5.19.8 Patch available GHSA-7259-vf48-52q3
  • org.apache.activemq:activemq-client (Maven) Vendor— Affected 6.0.0 to before 6.2.7 Fixed in 6.2.7 Patch available GHSA-7259-vf48-52q3
  • org.apache.activemq:apache-activemq (Maven) Vendor— Affected before 5.19.8 Fixed in 5.19.8 Patch available GHSA-7259-vf48-52q3
  • org.apache.activemq:apache-activemq (Maven) Vendor— Affected 6.0.0 to before 6.2.7 Fixed in 6.2.7 Patch available GHSA-7259-vf48-52q3
  • org.apache.activemq:activemq-all (Maven) Vendor— Affected before 5.19.8 Fixed in 5.19.8 Patch available GHSA-7259-vf48-52q3
  • org.apache.activemq:activemq-all (Maven) Vendor— Affected 6.0.0 to before 6.2.7 Fixed in 6.2.7 Patch available GHSA-7259-vf48-52q3

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*before 5.19.8; 6.0.0 to before 6.2.7VulnerableApache
  • cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* Versions before 5.19.8; 6.0.0 to before 6.2.7 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache ActiveMQ Client (Apache Software Foundation) Fixed in 5.19.8, 6.2.7
  • Fix · CNA Apache ActiveMQ (Apache Software Foundation) Fixed in 5.19.8, 6.2.7
  • Fix · CNA Apache ActiveMQ All (Apache Software Foundation) Fixed in 5.19.8, 6.2.7
  • Fix · GHSA-7259-vf48-52q3 org.apache.activemq:activemq-client (Maven) Fixed in 5.19.8 Advisory →
  • Fix · GHSA-7259-vf48-52q3 org.apache.activemq:activemq-client (Maven) Fixed in 6.2.7 Advisory →
  • Fix · GHSA-7259-vf48-52q3 org.apache.activemq:apache-activemq (Maven) Fixed in 5.19.8 Advisory →
  • Fix · GHSA-7259-vf48-52q3 org.apache.activemq:apache-activemq (Maven) Fixed in 6.2.7 Advisory →
  • Fix · GHSA-7259-vf48-52q3 org.apache.activemq:activemq-all (Maven) Fixed in 5.19.8 Advisory →
  • Fix · GHSA-7259-vf48-52q3 org.apache.activemq:activemq-all (Maven) Fixed in 6.2.7 Advisory →

Red Hat 3 advisories

  • RHSA-2026:69459 Released 2026-09-21 · Red Hat rating Important
    AMQ Clients 2026.Q3
    • AMQ Clients 2026.Q3
  • RHSA-2026:66545 Released 2026-09-10 · Red Hat rating Important
    Red Hat AMQ Broker 7.13.6 release and security update
    • Red Hat AMQ Broker 7.13.6
  • RHSA-2026:66488 Released 2026-09-10 · Red Hat rating Important
    Red Hat AMQ Broker 7.14.1 release and security update
    • Red Hat AMQ Broker 7.14.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache ActiveMQ 5.19.8, 6.2.7

    9 records Highest priority Priority MEDIUM 7 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-39329 Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Temporary destination ownership takeoverPriority MEDIUM 40
    • TI-2026-38893 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker…Priority MEDIUM 40
    • TI-2026-38892 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codecPriority MEDIUM 40
    Show all 9 records →
  • Release ·

    Apache ActiveMQ All 5.19.8, 6.2.7

    7 records Highest priority Priority MEDIUM 7 MEDIUM

    Other records, highest priority first

    • TI-2026-39329 Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Temporary destination ownership takeoverPriority MEDIUM 40
    • TI-2026-38893 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker…Priority MEDIUM 40
    • TI-2026-38892 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codecPriority MEDIUM 40
    Show all 7 records →
Show 1 more group
  • Release ·

    Apache ActiveMQ Client 5.19.8, 6.2.7

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-38893 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker…Priority MEDIUM 40
    Show all 2 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat AMQ Broker 7AffectedNo fix yet
Red Hat AMQ ClientsAffectedNo fix yet
Red Hat Fuse 7AffectedNo fix planned: Out of support scope
Red Hat Single Sign-On 7AffectedNo fix planned: Will not fix
AMQ Clients 2026.Q3Fixed RHSA-2026:69459
Red Hat AMQ Broker 7.13.6Fixed RHSA-2026:66545
Red Hat AMQ Broker 7.14.1Fixed RHSA-2026:66488
Not affected: 6 products
  • Red Hat Data Grid 8
  • Red Hat Enterprise Linux 8
  • Red Hat JBoss Enterprise Application Platform 7
  • Red Hat JBoss Enterprise Application Platform 8
  • Red Hat Satellite 6
  • Red Hat build of Apache Camel for Spring Boot 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-50734
  2. 2026-10-03 Alias added: GHSA-7259-vf48-52q3
  3. 2026-10-16 Affected versions changed · Red Hat
  4. 2026-11-04 Fix available: Maven/org.apache.activemq:[email protected], Maven/org.apache.activemq:[email protected], Maven/org.apache.activemq:[email protected] +3 · GHSA-7259-vf48-52q3
  5. 2026-11-04 CVSS score added · GHSA-7259-vf48-52q3
  6. 2026-11-04 Weakness changed · GHSA-7259-vf48-52q3
  7. 2026-11-04 10 new references · GHSA-7259-vf48-52q3

References

Advisory 3

Other 7

  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
  • TI-2016-02587 The Fileserver web application in Apache ActiveMQ 5.x before 5.14.0 allows remote… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-26494 Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Authenticated users could perform RCE via Jolokia MBeans KEVCVSS 3.1HIGH 8.8
  • TI-2013-05951 Xstream API versions up to 1.4.6 and version 1.4.10, if the security framework has not… CVSS 3.1CRITICAL 9.8
  • TI-2021-04451 XStream is vulnerable to an Arbitrary Code Execution attack CVSS 3.1CRITICAL 9.1
  • TI-2021-04446 XStream is vulnerable to an Arbitrary Code Execution attack CVSS 3.1CRITICAL 9.8
See all 74 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences