RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Channel.Qos in channel.go accepts negative prefetchCount and prefetchSize integers and casts them directly to uint16 and uint32 fields in the basic.qos method because validateQos is absent. Values such as -1 therefore wrap to 65535 or 4294967295 instead of being rejected. An application that permits untrusted configuration of these Qos values can unintentionally request extremely large prefetch limits, allowing a broker to deliver enough queued messages to exhaust client memory and disrupt processing. This issue is fixed in version 1.13.0.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Channel.Qos in channel.go accepts negative
    prefetchCount and prefetchSize integers and casts them directly to uint16 and uint32 fields in the
    basic.qos method because validateQos is absent. Values such as -1 therefore wrap to 65535 or 4294967295
    instead of being rejected. An application that permits untrusted configuration of these Qos values can
    unintentionally request extremely large prefetch limits, allowing a broker to deliver enough queued
    messages to exhaust client memory and disrupt processing. This issue is fixed in version 1.13.0.
    (CVE-2026-77406)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Channel.Qos in channel.go accepts negative     prefetchCount and prefetchSize integers and casts them directly to uint16 and uint32 fields in the     basic.qos method because validateQos is absent. Values such as -1 therefore wrap to 65535 or 4294967295     instead of being rejected. An application that permits untrusted configuration of these Qos values can     unintentionally request extremely large prefetch limits, allowing a broker to deliver enough queued     messages to exhaust client memory and disrupt processing. This issue is fixed in version 1.13.0.
    (CVE-2026-77406)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
457868	Echo: github.com/rabbitmq/amqp091-go: security update to 1.13.0	Tenable Cloud Security	Echo Local Security Checks	Local	high
457868	Echo: github.com/rabbitmq/amqp091-go: security update to 1.13.0	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
348209	Linux Distros Unpatched Vulnerability : CVE-2026-77406	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-77406

high

Tenable Plugins

high

high

high