UBUNTU-CVE-2026-66074

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Source
https://ubuntu.com/security/CVE-2026-66074
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66074.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-66074
Upstream
Published
2026-09-24T00:00:00Z
Modified
2026-09-25T06:37:11Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/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 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, match_value/3 passes the user-supplied ?name= regular expression to re:run with no match_limit option, and executes it once per resource in the result set. OTP's default 10M match_limit caps each call at roughly 100-200ms, but the regex runs once per resource in the result set. With a large set, for example 5000 queues at 150ms each, a single request consumes 12 or more minutes of CPU. Parallel requests saturate the schedulers. The use_regex=true option is a supported feature on list endpoints, so this path is reachable through normal API use. Preconditions include Any user with the management tag can exploit this.. This issue is fixed in versions 3.13.15, 4.0.20, 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-2026-66074.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-2026-66074.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-2026-66074.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-2026-66074.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-2026-66074.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-2026-66074.json"