RabbitMQ amqp091-go up to 1.13.x Body-Frame Parser allocation of resources

Summaryinfo

A vulnerability, which was classified as problematic, was found in RabbitMQ amqp091-go up to 1.13.x. This vulnerability affects unknown code of the component Body-Frame Parser. Such manipulation leads to allocation of resources. This vulnerability is referenced as CVE-2026-107386. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in RabbitMQ amqp091-go up to 1.13.x. Affected by this issue is some unknown functionality of the component Body-Frame Parser. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. CVE summarizes:

amqp091-go is a Go AMQP 0.9.1 client. From 1.13.0 until 1.14.0, the frame-size mitigation from the prior allocation advisory can be bypassed before connection.tune completes because Connection.maxFrameSize uses zero for both the not-yet-negotiated and negotiated-unlimited states. A malicious or compromised AMQP peer can send a short body-frame header with a large declared payload length, causing ReadFrame and the body-frame parser to allocate attacker-selected memory before the payload is received or the frame's protocol state is rejected. The condition is reachable through public Open even when Config.FrameSize is set to the protocol minimum and can cause severe memory pressure, out-of-memory termination, or loss of the client process before authentication completes. This issue is fixed in version 1.14.0.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-107386 since 10/07/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 1.14.0 eliminates this vulnerability.

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Productinfo

Vendor

• RabbitMQ

Name

• amqp091-go

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13

Website

• Product: https://github.com/rabbitmq/amqp091-go/

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