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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-w6r9-248c-frg8 amqp091-go: Pre-negotiation frame limit is not enforced to 4KB
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 08 Oct 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Rabbitmq
Rabbitmq amqp091-go
Vendors & Products Rabbitmq
Rabbitmq amqp091-go

Thu, 08 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description 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.
Title amqp091-go: Pre-negotiation frame limit is not enforced to 4KB
Weaknesses CWE-770
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-08T18:54:12.465Z

Reserved: 2026-10-07T21:07:54.988Z

Link: CVE-2026-107386

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-08T19:17:01.347

Modified: 2026-10-08T21:35:53.890

Link: CVE-2026-107386

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T21:00:14Z

Weaknesses