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vulnerability / NVI-00014150 / Revision 1

RabbitMQ amqp091-go: Missing Explicit TLS Minimum Version Configuration In URI Parser

GitHub lists this reviewed advisory for github.com/rabbitmq/amqp091-go. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.

source listedactiveGHSA-33mj-cw25-m34hCVE-2026-77405

This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.

01 / Meaning

Why it matters

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02 / Applicability

The affected context

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github.com/rabbitmq/amqp091-go

source listed
  • < 1.13.0

## Summary A structural security weakness exists in the AMQP client's TLS configuration generator (`tlsConfigFromURI`). When constructing a `*tls.Config` object from an `amqps://` connection URI, the library initializes the structure without explicitly defining the `MinVersion` field. While modern versions of the Go compiler toolchain (Go 1.18+) default the implicit minimum version to TLS 1.2, this security posture relies entirely on an implicit toolchain dependency. If the library is compiled using legacy Go toolchains (Go < 1.18), or if a future toolchain introduces fallback behavior, the client could silently negotiate obsolete and insecure TLS 1.0 or TLS 1.1 protocols during connection handshakes with a compromised or malicious AMQP broker. --- ## Vulnerability Details ### Mechanism The vulnerability lies in the lack of an explicit safety floor when assigning configurations inside the URI component: ```go // Example within uri.go's tlsConfigFromURI cfg := &tls.Config{ ServerName: host, // MinVersion is left completely unassigned (defaults to 0, or toolchain default) } ``` In the Go standard library (`crypto/tls`), leaving `MinVersion: 0` instructs the runtime to

GitHub Advisory Database

03 / Response

What to do next

  1. investigate

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04 / Limits

What this report cannot establish

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05 / Provenance

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  1. GHSA-33mj-cw25-m34h ↗

    GitHub Advisory Database · vendor advisory

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Public revision history

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  1. Revision 1 ·

    First indexed by Null; source disclosure date is shown separately.

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