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TI-2026-36590 Aliases CVE-2026-49432GHSA-xjwq-9jw5-jf7w

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service

Priority MEDIUM 40CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 2 fixed, 10 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat.

Summary

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can keep streaming body bytes and grow the per-connection command buffer beyond configured limits to cause OOM. For the blocking STOMP protocol, an error will instead force abnormal transport exception handling for the affected connection and closure. 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 0.00785 56th 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+4 more productsRed Hat: 2 advisoriesRed Hat: 2 fixed, 10 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
—org.apache.activemq:apache-activemq (Maven)before 5.19.85.19.8Patch availableGHSA-xjwq-9jw5-jf7w
—org.apache.activemq:apache-activemq (Maven)6.0.0 to before 6.2.76.2.7Patch availableGHSA-xjwq-9jw5-jf7w
—org.apache.activemq:activemq-all (Maven)before 5.19.85.19.8Patch availableGHSA-xjwq-9jw5-jf7w
—org.apache.activemq:activemq-all (Maven)6.0.0 to before 6.2.76.2.7Patch availableGHSA-xjwq-9jw5-jf7w
—org.apache.activemq:activemq-stomp (Maven)before 5.19.85.19.8Patch availableGHSA-xjwq-9jw5-jf7w
—org.apache.activemq:activemq-stomp (Maven)6.0.0 to before 6.2.76.2.7Patch availableGHSA-xjwq-9jw5-jf7w
  • 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
  • org.apache.activemq:apache-activemq (Maven) Vendor— Affected before 5.19.8 Fixed in 5.19.8 Patch available GHSA-xjwq-9jw5-jf7w
  • org.apache.activemq:apache-activemq (Maven) Vendor— Affected 6.0.0 to before 6.2.7 Fixed in 6.2.7 Patch available GHSA-xjwq-9jw5-jf7w
  • org.apache.activemq:activemq-all (Maven) Vendor— Affected before 5.19.8 Fixed in 5.19.8 Patch available GHSA-xjwq-9jw5-jf7w
  • org.apache.activemq:activemq-all (Maven) Vendor— Affected 6.0.0 to before 6.2.7 Fixed in 6.2.7 Patch available GHSA-xjwq-9jw5-jf7w
  • org.apache.activemq:activemq-stomp (Maven) Vendor— Affected before 5.19.8 Fixed in 5.19.8 Patch available GHSA-xjwq-9jw5-jf7w
  • org.apache.activemq:activemq-stomp (Maven) Vendor— Affected 6.0.0 to before 6.2.7 Fixed in 6.2.7 Patch available GHSA-xjwq-9jw5-jf7w

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
  • Fix · GHSA-xjwq-9jw5-jf7w org.apache.activemq:apache-activemq (Maven) Fixed in 5.19.8 Advisory →
  • Fix · GHSA-xjwq-9jw5-jf7w org.apache.activemq:apache-activemq (Maven) Fixed in 6.2.7 Advisory →
  • Fix · GHSA-xjwq-9jw5-jf7w org.apache.activemq:activemq-all (Maven) Fixed in 5.19.8 Advisory →
  • Fix · GHSA-xjwq-9jw5-jf7w org.apache.activemq:activemq-all (Maven) Fixed in 6.2.7 Advisory →
  • Fix · GHSA-xjwq-9jw5-jf7w org.apache.activemq:activemq-stomp (Maven) Fixed in 5.19.8 Advisory →
  • Fix · GHSA-xjwq-9jw5-jf7w org.apache.activemq:activemq-stomp (Maven) Fixed in 6.2.7 Advisory →

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-2026-38892 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 Stomp 5.19.8, 6.2.7

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-38892 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codecPriority 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: Fix deferred
Red Hat AMQ ClientsAffectedNo fix yet: Fix deferred
Red Hat Data Grid 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Fuse 7AffectedNo fix yet: Fix deferred
Red Hat JBoss Enterprise Application Platform 7AffectedNo fix yet: Fix deferred
Red Hat JBoss Enterprise Application Platform 8AffectedNo fix yet: Fix deferred
Red Hat Satellite 6AffectedNo fix yet: Fix deferred
Red Hat Single Sign-On 7AffectedNo fix yet: Fix deferred
Red Hat build of Apache Camel for Spring Boot 4AffectedNo fix yet: Fix deferred
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-2026-49432
  2. 2026-10-03 Alias added: GHSA-xjwq-9jw5-jf7w
  3. 2026-11-05 Fix available: Maven/org.apache.activemq:[email protected], Maven/org.apache.activemq:[email protected], Maven/org.apache.activemq:[email protected] +3 · GHSA-xjwq-9jw5-jf7w
  4. 2026-11-05 CVSS score added · GHSA-xjwq-9jw5-jf7w
  5. 2026-11-05 Weakness changed · GHSA-xjwq-9jw5-jf7w
  6. 2026-11-05 10 new references · GHSA-xjwq-9jw5-jf7w

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