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CVE-2026-108946 (GCVE-0-2026-108946)

Vulnerability from cvelistv5 – Published: 2026-11-04 10:14 – Updated: 2026-11-10 12:31

Title

Apache ActiveMQ, ActiveMQ Broker: The broker does not verify user provided connection id matches connection

Summary

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.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-10 12:29 UTC

CWE

CWE-20 - Improper input validation

Assigner

apache CNA

References

2 references

URL	Tags
https://lists.apache.org/thread/0spj0m846vhw3cjyf…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/1…

Impacted products

2 products

Vendor	Product	Version
Apache Software Foundation	Apache ActiveMQ	Affected: 6.0.0 , < 6.3.3 (semver) Affected: 0 , < 5.19.12 (semver)
Apache Software Foundation	ActiveMQ Broker	Affected: 6.0.0 , < 6.3.3 (semver) Affected: 0 , < 5.19.12 (semver)

Credits

zerovuln labs <zerovulnlabs@outlook.com>

Show details on NVD website

JSON

To clipboard

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CVE-2026-108949 (GCVE-0-2026-108949)

Vulnerability from cvelistv5 – Published: 2026-11-04 10:09 – Updated: 2026-11-06 16:20

Title

Apache ActiveMQ, ActiveMQ Broker: Repeated rejected temporary destination consumer requests can lead to broker OOM

Summary

Denial of Service via OOM vulnerability in Apache ActiveMQ, ActiveMQ Broker. An authenticated OpenWire client that sends a ConsumerInfo for a temporary queue/topic owned by another connection is rejected with InvalidDestinationException, but the rejected Subscription is left behind in the region's subscriptions map. Repeating the request leaks broker heap until OOM because the broker does not clean up the rejected subscriptions in the map. This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; ActiveMQ Broker: 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.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-04 21:12 UTC

CWE

CWE-401 - Missing release of memory after effective lifetime

Assigner

apache CNA

References

2 references

URL	Tags
https://lists.apache.org/thread/2l1jbc8j88w1n9bd4…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/1…

Impacted products

2 products

Vendor	Product	Version
Apache Software Foundation	Apache ActiveMQ	Affected: 6.0.0 , < 6.3.3 (semver) Affected: 0 , < 5.19.12 (semver)
Apache Software Foundation	ActiveMQ Broker	Affected: 6.0.0 , < 6.3.3 (semver) Affected: 0 , < 5.19.12 (semver)

Credits

Yicheng Yu (https://github.com/FHMTT)

Show details on NVD website

JSON

To clipboard

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Find a vulnerability

Search criteria

2 vulnerabilities found for ActiveMQ Broker by Apache Software Foundation

CVE-2026-108946 (GCVE-0-2026-108946)

CVE-2026-108949 (GCVE-0-2026-108949)