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vulnerability / NVI-00014056 / Revision 1

RabbitMQ amqp091-go: Plaintext Credential Exposure via Exported PLAIN Authentication Struct Fields

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-27gv-rfvv-22mvCVE-2026-77407

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

Published affected context helps an owner decide what evidence to gather. This report has not examined your application.

02 / Applicability

The affected context

Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.

github.com/rabbitmq/amqp091-go

source listed
  • < 1.13.0

## Summary An information disclosure vulnerability exists in the AMQP client implementation's authentication handling configuration. Following a successful connection handshake, the `Connection.Config.SASL` field stores the `Authentication` implementation state used to establish the session. For standard `PLAIN` authentication, this state utilizes the `PlainAuth` struct, which defines both `Username` and `Password` as publicly exported, plaintext string fields. Because this sensitive data is retained permanently in-memory within an exported field structure, any peripheral code, internal package, reflective logger, dependency, or automated debugging utility with access to the core `*Connection` object can read and expose the raw credentials. --- ## Vulnerability Details ### Mechanism The vulnerability stems from the structural design of the configuration storage used during and after the AMQP handshake: ```go // auth.go:21-23 type PlainAuth struct { Username string Password string // exported plaintext } ``` When an application initializes a connection, the `PlainAuth` object is deeply nested inside the configuration structure (`Connection.Config`). Even after the ha

GitHub Advisory Database

03 / Response

What to do next

  1. investigate

    Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.

    Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database

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04 / Limits

What this report cannot establish

  • Customer inventory, deployment, reachability and exploitation have not been inspected.
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05 / Provenance

Sources you can inspect

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  1. GHSA-27gv-rfvv-22mv ↗

    GitHub Advisory Database · vendor advisory

    Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.

Public revision history

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  1. Revision 1 ·

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

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The next step is private

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