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TI-2026-85008 Aliases CVE-2026-108946GHSA-r4jx-783j-33mp

Apache ActiveMQ broker accepts spoofed connection ids from clients

Priority LOW 22CWE-20Published · Updated

Key facts

Attack vector
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Privileges required
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User interaction
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Attack complexity
—
Impact type
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Confidentiality · integrity · availability
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Fix status
Partial Red Hat: 1 without a fix

No CVSS vector from any source. Fix status from CNA and Red Hat.

Summary

Apache ActiveMQ and ActiveMQ Broker from 6.0.0 before 6.3.3 and before 5.19.12 are affected. The broker does not check that user-provided connection, session or consumer ids belong to the client (CWE-20). An authenticated client can spoof another user's ids to consume from a victim's temporary queue or topic, tear down a live subscription, or permanently delete an unacknowledged message.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Improper input validation vulnerability in Apache ActiveMQ, Apache ActiveMQ KahaDB. The ActiveMQ broker resolves connection, session and consumer state from ids that are user provided and in some scenarios does not validate that they ids are bound to that user. This allows an authenticated client to spoof another user's ids. This allows: *  an authenticated client consumes from another connection's temporary queue/topic by putting the victim's connection id in its own ConsumerId, bypassing the broker-side ownership check.  * a duplicate ConsumerId registration is only logged, after which the attacker's RemoveInfo or disconnect tears down the victim's live subscription * a forged MessageAck for the victim's ConsumerId permanently deletes an in-flight, unacknowledged message. This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; Apache ActiveMQ KahaDB: from 6.0.0 before 6.3.3, before 5.19.12. Users are recommended to upgrade to version 6.4.0, 6.3.3, or 5.19.12, which fixes the issue.

Why it matters now

EPSS 0.00229 13th percentileScored 2026-11-07
Fix Partial Apache ActiveMQ (Apache Software Foundation): 6.3.3, 5.19.12ActiveMQ Broker (Apache Software Foundation): 6.3.3, 5.19.12Red Hat: 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache ActiveMQ6.0.0 to before 6.3.3; before 5.19.126.3.3, 5.19.12Patch availableCNA
ApacheActiveMQ Broker6.0.0 to before 6.3.3; before 5.19.126.3.3, 5.19.12Patch availableCNA
  • Apache ActiveMQ VendorApache Affected 6.0.0 to before 6.3.3; before 5.19.12 Fixed in 6.3.3, 5.19.12 Patch available CNA
  • ActiveMQ Broker VendorApache Affected 6.0.0 to before 6.3.3; before 5.19.12 Fixed in 6.3.3, 5.19.12 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*——Apache
  • cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* Versions — — ·Apache

Remediation

Upgrade Apache ActiveMQ and ActiveMQ Broker to 6.3.3 or 5.19.12, or to 6.4.0. Red Hat Fuse 7 has no fix planned.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA Apache ActiveMQ (Apache Software Foundation) Fixed in 6.3.3, 5.19.12
  • Fix · CNA ActiveMQ Broker (Apache Software Foundation) Fixed in 6.3.3, 5.19.12

Fixed in the same release

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

  • Release ·

    Apache ActiveMQ 5.19.12, 6.3.3

    5 records Highest priority Priority LOW 5 LOW

    Other records, highest priority first

    • TI-2026-85009 Repeated rejected consumer requests exhaust memory in Apache ActiveMQPriority LOW 29
    • TI-2026-85020 LDAP DN injection in Apache ActiveMQ authorization mapPriority LOW 22
    • TI-2026-85012 Apache ActiveMQ keeps write access after live ACL revocationPriority LOW 22
    Show all 5 records →
  • Release ·

    Apache Software Foundation ActiveMQ Broker 5.19.12, 6.3.3

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-85009 Repeated rejected consumer requests exhaust memory in Apache ActiveMQPriority LOW 29
    Show all 2 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Fuse 7AffectedNo fix planned: Out of support scope

Timeline

  1. 2026-11-04 Threatist record created from CVE-2026-108946
  2. 2026-11-04 Alias added: GHSA-r4jx-783j-33mp
  3. 2026-11-06 Affected versions changed · Red Hat
  4. 2026-11-06 CVSS score added · Red Hat

References

Advisory 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

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