Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All: AMQP NIO negative frame size validation bypass leading to DoS

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-59878
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-28 14:16:38 UTC
Updated2026-07-28 16:20:53 UTC
DescriptionImproper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All. A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections. This issue affects Apache ActiveMQ AMQP: 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; Apache ActiveMQ All: 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.005480000 probability, percentile 0.426780000 (date 2026-07-29)

Problem Types: CWE-20 | CWE-20 CWE-20 Improper Input Validation

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache ActiveMQ AMQP affected 5.19.9 semver Not specified
CNA Apache Software Foundation Apache ActiveMQ AMQP affected 6.0.0 6.2.8 semver Not specified
CNA Apache Software Foundation Apache ActiveMQ affected 5.19.9 semver Not specified
CNA Apache Software Foundation Apache ActiveMQ affected 6.0.0 6.2.8 semver Not specified
CNA Apache Software Foundation Apache ActiveMQ All affected 5.19.9 semver Not specified
CNA Apache Software Foundation Apache ActiveMQ All affected 6.0.0 6.2.8 semver Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread/dnyx4d2oldshcj4lthso7b53y4bqmjvn [email protected] lists.apache.org
www.openwall.com/lists/oss-security/2026/07/27/7 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: zx (Jace) (en)

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