# CVE-2026-77405: RabbitMQ amqp091-go: Missing Explicit TLS Minimum Version Configuration In URI Parser

CVE-2026-77405 is fixed in golang-github-rabbitmq-amqp091-go on 1 platform by DEBIAN-CVE-2026-77405 (version 1.14.0-1), released September 18, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-77405
- Priority: Urgent
- CVSS: n/a (Critical)
- EPSS: 0.0028
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 16, 2026
- Weakness: Inadequate Encryption Strength
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77405

## Description

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, tlsConfigFromURI in uri.go creates tls.Config values without setting MinVersion to tls.VersionTLS12. Builds using a Go runtime whose default permits TLS 1.0 or TLS 1.1 can therefore negotiate an obsolete protocol version when connecting through an amqps URI. A network attacker able to influence TLS negotiation with such a legacy build may weaken transport protection for AMQP messages and credentials. This issue is fixed in version 1.13.0.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | golang-github-rabbitmq-amqp091-go Debian 14 | 1.14.0-1 | [DEBIAN-CVE-2026-77405](https://patchblox.com/security/data/fix/linux/debian-cve-2026-77405.md) | Sep 18, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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