CVE-2026-108946
No CVSS score yet.
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.
- CWE
- CWE-20 Improper Input Validation
- Published
- Modified
- Record from
- the NVD, synced
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Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Apache Software Foundation Apache ActiveMQ | from 6.0.0 before 6.3.3 |
| Apache Software Foundation Apache ActiveMQ | before 5.19.12 |
| Apache Software Foundation ActiveMQ Broker | from 6.0.0 before 6.3.3 |
| Apache Software Foundation ActiveMQ Broker | before 5.19.12 |
Attack patterns (CAPEC)
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-20 (51).