UBUNTU-CVE-2026-63336

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Source
https://ubuntu.com/security/CVE-2026-63336
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63336.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-63336
Upstream
Published
2026-08-18T17:17:00Z
Modified
2026-09-02T19:35:54Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N 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 5.33.0, com.rabbitmq.client.ConnectionFactory.useSslProtocol() and ConnectionFactory.useSslProtocol(String) configure com.rabbitmq.client.TrustEverythingTrustManager and leave hostname verification disabled, causing arbitrary server certificates, including self-signed certificates, to be accepted. A network attacker able to intercept a TLS connection can impersonate the RabbitMQ broker, read protected AMQP traffic, and modify traffic without certificate or hostname validation. The fix changes the production TLS helpers to use the JVM default trust store and enables hostname verification, while retaining an explicitly named development-only no-verification helper. This issue is fixed in version 5.33.0.

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-2026-63336.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-2026-63336.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-2026-63336.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-2026-63336.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-2026-63336.json"