CVE-2026-61487

Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Authorization bypass via temporary composite destinations

MEDIUM

6.5

CVSS Score

Published: July 28, 2026 at 01:32 PM UTC

Updated: August 5, 2026 at 07:04 PM UTC

3 products affected across 1 vendorActiveMQActiveMQ AllApache ActiveMQ Broker

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

Improper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An authenticated low-privilege user can bypass a per-destination write ACL by sending to an ActiveMQ temporary composite destination whose physical name is a comma-separated composite of real queues. This allows publishing messages to any of the destinations in the list without proper write ACL permissions because the authorization check is bypassed due to the composite destination being marked as temporary. This issue affects Apache ActiveMQ Broker: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8. Users are recommended to upgrade to version 5.19.9, 6.2.8 or 6.3.0, which fixes the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

ActiveMQ · Apachemaven

95%

v < 5.19.96.0.0 ≤ v < 6.2.86.0.0

Affected range stops below 5.19.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2.8, so it looks safe — our inference, not a vendor statement

ActiveMQ All · Apachemaven

95%

v < 5.19.96.0.0 ≤ v < 6.2.86.0.0

Affected range stops below 5.19.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2.8, so it looks safe — our inference, not a vendor statement

Apache ActiveMQ Broker · Apachemaven

95%

v < 5.19.96.0.0 ≤ v < 6.2.86.0.0

Affected range stops below 5.19.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://lists.apache.org/thread/6rwn6cq65dy4lhmsmjf2bxnhbmhkcswz

References (2)

Vendor AdvisoryMailing List

Source: cverecord

https://lists.apache.org/thread/6rwn6cq65dy4lhmsmjf2bxnhbmhkcswz

Mailing ListThird Party Advisory

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.openwall.com/lists/oss-security/2026/07/27/8

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-285

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