Medium severity5.3NVD Advisory· Published Aug 24, 2022· Updated Jun 17, 2026
CVE-2021-4040
CVE-2021-4040
Description
A flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.apache.activemq:artemis-core-clientMaven | < 2.19.1 | 2.19.1 |
Affected products
4- AMQ Broker/AMQ Brokerdescription
Patches
Vulnerability mechanics
References
9- github.com/apache/activemq-artemis/pull/3871/commitsnvdPatchThird Party AdvisoryWEB
- issues.apache.org/jira/browse/ARTEMIS-3593nvdPatchThird Party AdvisoryWEB
- access.redhat.com/security/cve/CVE-2021-4040nvdVendor AdvisoryWEB
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingVendor AdvisoryWEB
- github.com/advisories/GHSA-gf8c-j759-86mgghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-4040ghsaADVISORY
- github.com/apache/activemq-artemis/pull/3862ghsaWEB
- github.com/apache/activemq-artemis/pull/3871ghsaWEB
- github.com/apache/activemq-artemis/pull/3871/commits/153d2e9a979aead8dff95fbc91d659ecc7d0fb82ghsaWEB
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