UBUNTU-CVE-2026-66080

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Source
https://ubuntu.com/security/CVE-2026-66080
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66080.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-66080
Upstream
Published
2026-09-24T00:00:00Z
Modified
2026-09-25T06:36:37Z
Severity
  • 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

RabbitMQ is a messaging and streaming broker. Prior to versions 4.1.11, 4.2.6, and 4.3.0, validate_partitions only checks that the requested partition count is at least 1, with no upper bound. A large count such as lists:seq(0, 500000000) allocates roughly 8GB. Preconditions include The rabbitmq_stream_management plugin must be enabled. The caller needs the management tag and access to the target vhost.. This issue is fixed in versions 4.1.11, 4.2.6, and 4.3.0.

References

Affected packages

Ubuntu:18.04:LTS
rabbitmq-server

Package

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

Affected ranges

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

Affected versions

3.*
3.6.10-1
3.6.10-1ubuntu0.1
3.6.10-1ubuntu0.3
3.6.10-1ubuntu0.4
3.6.10-1ubuntu0.5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "rabbitmq-server",
            "binary_version":  "3.6.10-1ubuntu0.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66080.json"
Ubuntu:20.04:LTS
rabbitmq-server

Package

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

Affected ranges

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

Affected versions

3.*
3.7.8-4ubuntu2
3.7.18-1
3.8.2-0ubuntu1
3.8.2-0ubuntu1.1
3.8.2-0ubuntu1.2
3.8.2-0ubuntu1.3
3.8.2-0ubuntu1.4
3.8.2-0ubuntu1.5
3.8.3-0ubuntu0.1
3.8.3-0ubuntu0.2
3.8.3-0ubuntu0.3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "rabbitmq-server",
            "binary_version":  "3.8.3-0ubuntu0.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66080.json"
Ubuntu:22.04:LTS
rabbitmq-server

Package

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

Affected ranges

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

Affected versions

3.*
3.8.9-3ubuntu1
3.9.8-1
3.9.8-2
3.9.8-3
3.9.8-5
3.9.8-6
3.9.13-1
3.9.13-1ubuntu0.22.04.1
3.9.13-1ubuntu0.22.04.2
3.9.27-0ubuntu0.1
3.9.27-0ubuntu0.2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "rabbitmq-server",
            "binary_version":  "3.9.27-0ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66080.json"
Ubuntu:24.04:LTS
rabbitmq-server

Package

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

Affected ranges

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

Affected versions

3.*
3.12.1-1
3.12.1-1ubuntu1
3.12.1-1ubuntu1.2
3.12.1-1ubuntu1.4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "rabbitmq-server",
            "binary_version":  "3.12.1-1ubuntu1.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66080.json"
Ubuntu:26.04:LTS
rabbitmq-server

Package

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

Affected ranges

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

Affected versions

4.*
4.0.5-8ubuntu2
4.0.5-10ubuntu1
4.0.5-10ubuntu2
4.0.5-10ubuntu3
4.0.5-10ubuntu4
4.0.5-10ubuntu5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "rabbitmq-server",
            "binary_version":  "4.0.5-10ubuntu5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66080.json"
Ubuntu:Pro:16.04:LTS
rabbitmq-server

Package

Name
rabbitmq-server
Purl
pkg:deb/ubuntu/rabbitmq-server?arch=source&distro=esm-infra%2Fxenial

Affected ranges

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

Affected versions

3.*
3.5.4-1
3.5.4-3
3.5.4-3.1
3.5.7-1
3.5.7-1ubuntu0.16.04.1
3.5.7-1ubuntu0.16.04.2
3.5.7-1ubuntu0.16.04.4
3.5.7-1ubuntu0.16.04.4+esm1
3.5.7-1ubuntu0.16.04.4+esm2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "rabbitmq-server",
            "binary_version":  "3.5.7-1ubuntu0.16.04.4+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66080.json"