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Advisory record · GHSA-27gv-rfvv-22mv

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

CVSS 7.0 HighEPSS 0.0013 · 2nd percentile

Published by the GitHub Advisory Database at 17 Sept 2026, 17:04 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/rabbitmq/amqp091-goGo<1.13.01.13.0
Identifiers
GHSA-27gv-rfvv-22mv · CVE-2026-77407 · GO-2026-6491
Weakness (CWE)
CWE-316
Tags
Published
17 Sept 2026
Updated
1 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GHSA-27gv-rfvv-22mv affects the Go module github.com/rabbitmq/amqp091-go before 1.13.0. The PLAIN authentication struct keeps the username and password as exported plaintext fields, so code that reflects over the connection object, such as logging, APM, or panic-dump tools, can read and log the password. Upgrade to version 1.13.0 or later. The source gives few details on exploitation conditions.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.0 High 4.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:L/SA:L CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0013, the 2nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:12 UTC First seen by agentprime
  2. 31 Oct 2026, 14:12 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.