UBUNTU-CVE-2026-44236

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Source
https://ubuntu.com/security/CVE-2026-44236
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-44236
Upstream
Downstream
USN (2)
Related
USN (2)
Published
2026-06-11T00:00:00Z
Modified
2026-09-24T02:00:16Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to 0.16.0, a malicious AMQP server can send an undersized connection.tune.frame_max value during amqp_login(), and rabbitmq-c accepts the value in amqp_login_inner() in librabbitmq/amqp_socket.c. amqp_tune_connection() in librabbitmq/amqp_connection.c uses frame_max to reallocate the outbound buffer without enforcing AMQP_FRAME_MIN_SIZE. Immediate serialization of connection.tune-ok through amqp_frame_to_bytes() writes beyond the undersized heap allocation, causing memory corruption and likely denial of service. An on-path attacker can also trigger the flaw against plaintext AMQP traffic. Code execution is theoretically possible but was not demonstrated. This issue is fixed in version 0.16.0.

References

Affected packages

Ubuntu:22.04:LTS
librabbitmq

Package

Name
librabbitmq
Purl
pkg:deb/ubuntu/librabbitmq?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.10.0-1ubuntu2.1

Affected versions

0.*
0.10.0-1
0.10.0-1build1
0.10.0-1ubuntu1
0.10.0-1ubuntu2

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "amqp-tools",
            "binary_version":  "0.10.0-1ubuntu2.1"
        },
        {
            "binary_name":  "librabbitmq4",
            "binary_version":  "0.10.0-1ubuntu2.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json"
Ubuntu:24.04:LTS
librabbitmq

Package

Name
librabbitmq
Purl
pkg:deb/ubuntu/librabbitmq?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.11.0-1ubuntu0.1

Affected versions

0.*
0.11.0-1
0.11.0-1build1
0.11.0-1build2

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "amqp-tools",
            "binary_version":  "0.11.0-1ubuntu0.1"
        },
        {
            "binary_name":  "librabbitmq4",
            "binary_version":  "0.11.0-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json"
Ubuntu:25.10
librabbitmq

Package

Name
librabbitmq
Purl
pkg:deb/ubuntu/librabbitmq?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.15.0-1ubuntu0.25.10.1

Affected versions

0.*
0.15.0-1
0.15.0-1build1

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "amqp-tools",
            "binary_version":  "0.15.0-1ubuntu0.25.10.1"
        },
        {
            "binary_name":  "librabbitmq4",
            "binary_version":  "0.15.0-1ubuntu0.25.10.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json"
Ubuntu:26.04:LTS
librabbitmq

Package

Name
librabbitmq
Purl
pkg:deb/ubuntu/librabbitmq?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.15.0-1ubuntu0.26.04.1

Affected versions

0.*
0.15.0-1build1
0.15.0-1build2

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "amqp-tools",
            "binary_version":  "0.15.0-1ubuntu0.26.04.1"
        },
        {
            "binary_name":  "librabbitmq4",
            "binary_version":  "0.15.0-1ubuntu0.26.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json"
Ubuntu:Pro:14.04:LTS
librabbitmq

Package

Name
librabbitmq
Purl
pkg:deb/ubuntu/librabbitmq?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.4.1-1ubuntu0.1~esm2

Affected versions

0.*
0.3.0-1
0.4.1-1
0.4.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "availability":  "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "amqp-tools",
            "binary_version":  "0.4.1-1ubuntu0.1~esm2"
        },
        {
            "binary_name":  "librabbitmq1",
            "binary_version":  "0.4.1-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json"
Ubuntu:Pro:16.04:LTS
librabbitmq

Package

Name
librabbitmq
Purl
pkg:deb/ubuntu/librabbitmq?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.7.1-1ubuntu0.2+esm1

Affected versions

0.*
0.5.2-2
0.7.1-1
0.7.1-1ubuntu0.1
0.7.1-1ubuntu0.2

Ecosystem specific 

{
    "availability":  "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "amqp-tools",
            "binary_version":  "0.7.1-1ubuntu0.2+esm1"
        },
        {
            "binary_name":  "librabbitmq4",
            "binary_version":  "0.7.1-1ubuntu0.2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json"
Ubuntu:Pro:18.04:LTS
librabbitmq

Package

Name
librabbitmq
Purl
pkg:deb/ubuntu/librabbitmq?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.8.0-1ubuntu0.18.04.2+esm1

Affected versions

0.*
0.8.0-1
0.8.0-1build1
0.8.0-1ubuntu0.18.04.1
0.8.0-1ubuntu0.18.04.2

Ecosystem specific 

{
    "availability":  "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "amqp-tools",
            "binary_version":  "0.8.0-1ubuntu0.18.04.2+esm1"
        },
        {
            "binary_name":  "librabbitmq4",
            "binary_version":  "0.8.0-1ubuntu0.18.04.2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json"
Ubuntu:Pro:20.04:LTS
librabbitmq

Package

Name
librabbitmq
Purl
pkg:deb/ubuntu/librabbitmq?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.10.0-1ubuntu0.20.04.1~esm1

Affected versions

0.*
0.9.0-0.2
0.9.0-0.2ubuntu1
0.10.0-1

Ecosystem specific 

{
    "availability":  "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "amqp-tools",
            "binary_version":  "0.10.0-1ubuntu0.20.04.1~esm1"
        },
        {
            "binary_name":  "librabbitmq4",
            "binary_version":  "0.10.0-1ubuntu0.20.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44236.json"