Read the docs
TI-2026-38892 Aliases CVE-2026-53916GHSA-2q9g-8573-3265

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec

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: 2 fixed, 1 without a fix

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

Summary

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM heap. This issue affects 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; Apache ActiveMQ Stomp: 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 (Apache Software Foundation): 5.19.8, 6.2.7Apache ActiveMQ All (Apache Software Foundation): 5.19.8, 6.2.7+1 more productRed Hat: 2 advisoriesRed Hat: 2 fixed, 1 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 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
ApacheApache ActiveMQ Stompbefore 5.19.8; 6.0.0 to before 6.2.75.19.8, 6.2.7Patch availableCNA
  • 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
  • Apache ActiveMQ Stomp 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

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 (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 · CNA Apache ActiveMQ Stomp (Apache Software Foundation) Fixed in 5.19.8, 6.2.7

Red Hat 2 advisories

  • 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-2026-37413 Uncontrolled resource consumption in Apache ActiveMQ BrokerPriority 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-2026-37413 Uncontrolled resource consumption in Apache ActiveMQ BrokerPriority MEDIUM 40
    Show all 7 records →
Show 1 more group
  • Release ·

    Apache ActiveMQ Stomp 5.19.8, 6.2.7

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-36590 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of servicePriority 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 Fuse 7AffectedNo fix planned: Out of support scope
Red Hat AMQ Broker 7.13.6Fixed RHSA-2026:66545
Red Hat AMQ Broker 7.14.1Fixed RHSA-2026:66488

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-53916
  2. 2026-10-03 Alias added: GHSA-2q9g-8573-3265
  3. 2026-10-12 Affected versions changed · Red Hat

References

Advisory 2

  • 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