UBUNTU-CVE-2026-77403

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-77403
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77403.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-77403
Upstream
Published
2026-09-16T15:17:00Z
Modified
2026-10-01T00:22:11Z
Severity
  • 8.9 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Connection.openTune in connection.go accepts a server-advertised FrameMax below the AMQP frameMinSize value of 4096 bytes because the connection negotiation loop does not enforce the protocol minimum. A malicious or compromised AMQP broker can therefore advertise an extremely small FrameMax, causing later client publications to be fragmented into excessive numbers of frames and write operations. This can consume CPU and stall the client or its host. This issue is fixed in version 1.13.0.

References

Affected packages

Ubuntu:24.04:LTS / golang-github-rabbitmq-amqp091-go

Package

Name
golang-github-rabbitmq-amqp091-go
Purl
pkg:deb/ubuntu/golang-github-rabbitmq-amqp091-go?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.8.1-2
1.9.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-rabbitmq-amqp091-go-dev",
            "binary_version": "1.9.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77403.json"

Ubuntu:26.04:LTS / golang-github-rabbitmq-amqp091-go

Package

Name
golang-github-rabbitmq-amqp091-go
Purl
pkg:deb/ubuntu/golang-github-rabbitmq-amqp091-go?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.10.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "golang-github-rabbitmq-amqp091-go-dev",
            "binary_version": "1.10.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77403.json"