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CVE-2026-40046

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2026
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT: Missing fix for CVE-2025-66168: MQTT control packet remaining length field is not properly validated

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 (and future 5.19.x) releases but was missed for all 6.0.0+ versions. This issue affects Apache ActiveMQ: from 6.0.0 before 6.2.4; Apache ActiveMQ All: from 6.0.0 before 6.2.4; Apache ActiveMQ MQTT: from 6.0.0 before 6.2.4. Users are recommended to upgrade to version 6.2.4 or a 5.19.x version starting with 5.19.2 or later (currently latest is 5.19.5), which fixes the issue.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Apache ActiveMQ

Vendor
Apache Software Foundation
Product
Apache ActiveMQ
Platforms
Unknown
Default status
unaffected
Package
org.apache.activemq:apache-activemq
Package collection
https://repo.maven.apache.org/maven2
Apache ActiveMQ · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.0.0affectedsemver6.2.4UnavailableNone listed

Apache ActiveMQ All

Vendor
Apache Software Foundation
Product
Apache ActiveMQ All
Platforms
Unknown
Default status
unaffected
Package
org.apache.activemq:activemq-all
Package collection
https://repo.maven.apache.org/maven2
Apache ActiveMQ All · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.0.0affectedsemver6.2.4UnavailableNone listed

Apache ActiveMQ MQTT

Vendor
Apache Software Foundation
Product
Apache ActiveMQ MQTT
Platforms
Unknown
Default status
unaffected
Package
org.apache.activemq:activemq-mqtt
Package collection
https://repo.maven.apache.org/maven2
Apache ActiveMQ MQTT · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
6.0.0affectedsemver6.2.4UnavailableNone listed