CVE-2026-39304
high
CVSS v3
7.5
CVSS v2
—
VIR risk
7.5
Description
Apache ActiveMQ: Denial of Service via Out of Memory vulnerability
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: security@apache.org — https://activemq.apache.org/security-advisories.data/CVE-2026-39304-announcement.txt
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-39304
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | trixie | affected | |
| debian | bullseye | affected | |
| debian | bookworm | affected | |
| debian | sid | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.activemq:activemq-client | <5.19.4 | 5.19.4 |
| Maven | org.apache.activemq:activemq-client | >=6.0.0,<6.2.4 | 6.2.4 |
| Maven | org.apache.activemq:activemq-broker | <5.19.4 | 5.19.4 |
| Maven | org.apache.activemq:activemq-broker | >=6.0.0,<6.2.4 | 6.2.4 |
| Maven | org.apache.activemq:activemq-all | <5.19.4 | 5.19.4 |
| Maven | org.apache.activemq:activemq-all | >=6.0.0,<6.2.4 | 6.2.4 |
| Maven | org.apache.activemq:apache-activemq | <5.19.4 | 5.19.4 |
| Maven | org.apache.activemq:apache-activemq | >=6.0.0,<6.2.4 | 6.2.4 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| apache | activemq | {"endExcluding":"5.19.4"} | 5.19.4 |
| apache | activemq_broker | {"endExcluding":"5.19.4"} | 5.19.4 |
References
CWEs
CWE-400
Verify integrity in audit chain (admin only). AS-IS.