What is CVE-2025-27427?

CVE-2025-27427 is a medium-severity vulnerability in Apache Artemis, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2025-04-01.

How severe is CVE-2025-27427?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2025-27427 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Apache Artemis

CVE-2025-27427

A vulnerability exists in Apache ActiveMQ Artemis whereby a user with the createDurableQueue or createNonDurableQueue permission on an address can augment the routing-type supported by that address even if said user doesn't have the createAddress permission for that particular address. When combined with the send permission and automatic queue creation a user could successfully send a message with a routing-type not supported by the address when that message should actually be rejected on the basis that the user doesn't have permission to change the routing-type of the address. This issue affects Apache ActiveMQ Artemis from 2.0.0 through 2.39.0. Users are recommended to upgrade to version 2.40.0 which fixes the issue.

Vulnerability class: Broken Access Control

Published 2025-04-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (49.7th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Apache Artemis
Apache Software Foundation Activemq Artemis — versions 2.0.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

Public proof-of-concept exploits

tanjiti/sec_

References

lists.apache.org/thread/8dzlm2vkqphyrnkrby8r8kzndsm5o6x8 (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2025-27427?: CVE-2025-27427 is a medium-severity vulnerability in Apache Artemis, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2025-04-01.
How severe is CVE-2025-27427?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2025-27427 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.