UBUNTU-CVE-2026-63335

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Source
https://ubuntu.com/security/CVE-2026-63335
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63335.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-63335
Upstream
Published
2026-08-18T17:17:00Z
Modified
2026-09-02T19:35:54Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.31.0, inbound AMQP command assembly in src/main/java/com/rabbitmq/client/impl/CommandAssembler.java processes a content-bearing method and header whose remainingBodyBytes value is smaller than a following AMQP.FRAME_BODY payload. CommandAssembler.consumeBodyFrame subtracts the peer-controlled payload length before validating that it fits, drives remainingBodyBytes negative, and throws a raw UnsupportedOperationException instead of MalformedFrameException. A malicious or compromised broker peer can send this malformed sequence on an open nonzero channel to terminate frame processing and close the client connection, causing denial of service for work using that connection. This issue is fixed in version 5.31.0.

References

Affected packages

Ubuntu:18.04:LTS / rabbitmq-java-client

Package

Name
rabbitmq-java-client
Purl
pkg:deb/ubuntu/rabbitmq-java-client?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librabbitmq-client-java",
            "binary_version": "5.0.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63335.json"

Ubuntu:20.04:LTS / rabbitmq-java-client

Package

Name
rabbitmq-java-client
Purl
pkg:deb/ubuntu/rabbitmq-java-client?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librabbitmq-client-java",
            "binary_version": "5.0.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63335.json"

Ubuntu:22.04:LTS / rabbitmq-java-client

Package

Name
rabbitmq-java-client
Purl
pkg:deb/ubuntu/rabbitmq-java-client?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.0.0-1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librabbitmq-client-java",
            "binary_version": "5.0.0-1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63335.json"

Ubuntu:24.04:LTS / rabbitmq-java-client

Package

Name
rabbitmq-java-client
Purl
pkg:deb/ubuntu/rabbitmq-java-client?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.0.0-1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librabbitmq-client-java",
            "binary_version": "5.0.0-1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63335.json"

Ubuntu:26.04:LTS / rabbitmq-java-client

Package

Name
rabbitmq-java-client
Purl
pkg:deb/ubuntu/rabbitmq-java-client?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.0.0-1.1
5.0.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librabbitmq-client-java",
            "binary_version": "5.0.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63335.json"