Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Apache ActiveMQ Artemis artemis-server versions 2.0.0 through 2.39.0 are affected. A user who has queue-creation permissions on an address, but not the createAddress permission for it, can change the routing-type that address supports, and with send permission and automatic queue creation can send messages using a routing-type they should not be allowed to modify. Upgrade to version 2.40.0 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 2.3 | Low | 4.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | CNA (apache) |
- CISA KEV Not listed.
- EPSS 0.0065, the 51st percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:17 UTC First seen by agentprime
- 31 Oct 2026, 14:17 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-3w85-5p9g-h334
- OSV: GHSA-3w85-5p9g-h334
- nvd.nist.gov/vuln/detail/CVE-2025-27427
- github.com/apache/activemq-artemis/commit/2216a75a57f098295abb283d556c8b8bda91324d
- github.com/apache/activemq-artemis/commit/6ab458015689303db8878941abe1bc973299fc2e
- github.com/apache/activemq-artemis
- issues.apache.org/jira/browse/ARTEMIS-5346
- lists.apache.org/thread/8dzlm2vkqphyrnkrby8r8kzndsm5o6x8
- www.openwall.com/lists/oss-security/2025/03/31/1