Vulnerability · Published Sep 16, 2026 · Assigned by GitHub_M
CVE-2026-77405RabbitMQ amqp091-go: Missing Explicit TLS Minimum Version Configuration In URI Parser
Critical 9.4
In plain English
A critical-severity security flaw in amqp091-go from rabbitmq. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | golang-github-rabbitmq-amqp091-go | no fix listed | DEBIAN-CVE-2026-77405 |
| Debian:13 | golang-github-rabbitmq-amqp091-go | no fix listed | DEBIAN-CVE-2026-77405 |
| Debian:14 | golang-github-rabbitmq-amqp091-go | 1.14.0-1 | DEBIAN-CVE-2026-77405 |
| Go | github.com/rabbitmq/amqp091-go | 1.13.0 | GO-2026-6492 |
| Go | github.com/rabbitmq/amqp091-go | 1.13.0 | GHSA-33mj-cw25-m34h |
| Ubuntu:24.04:LTS | golang-github-rabbitmq-amqp091-go | no fix listed | UBUNTU-CVE-2026-77405 |
| Ubuntu:26.04:LTS | golang-github-rabbitmq-amqp091-go | no fix listed | UBUNTU-CVE-2026-77405 |
| Ubuntu:26.10 | golang-github-rabbitmq-amqp091-go | no fix listed | UBUNTU-CVE-2026-77405 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| rabbitmq | amqp091-go | < 1.13.0 |
Weakness: CWE-326 · Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:L/SA:N
References
- https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-33mj-cw25-m34h x_refsource_CONFIRM
- https://github.com/rabbitmq/amqp091-go/pull/355 x_refsource_MISC
- https://github.com/rabbitmq/amqp091-go/commit/c9fd433ecac2e557919e51acc9d809390c402c6e x_refsource_MISC
- https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0 x_refsource_MISC