{"id":"CVE-2026-77405","title":"RabbitMQ amqp091-go is a Go AMQP 0.9.1 client","summary":"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 t…","severity":"critical","cvss":9.4,"cvssVector":"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","cwe":["CWE-326","CWE-316"],"vendor":"rabbitmq","product":"amqp091-go","affected":["amqp091-go < 1.13.0"],"patched":["github.com/rabbitmq/amqp091-go 1.13.0"],"published":"2026-09-16","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:14.820","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77405","references":[{"url":"https://github.com/rabbitmq/amqp091-go/commit/c9fd433ecac2e557919e51acc9d809390c402c6e","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/amqp091-go/pull/355","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-33mj-cw25-m34h","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77405"},{"url":"https://github.com/advisories/GHSA-33mj-cw25-m34h"},{"url":"https://github.com/rabbitmq/amqp091-go"}],"tags":["nvd","cve.org","ghsa","go","osv"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-18T17:59:04.727483Z"},"cvssSource":"cna","epss":0.0023,"epssPercentile":0.14048,"aliases":["GHSA-33mj-cw25-m34h"],"ecosystem":"go","ingestedAt":"2026-09-16T14:57:28.034Z","slug":"CVE-2026-77405","body":"## Overview\n\nRabbitMQ 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-77405)\n\nAffected packages:\n\n- `github.com/rabbitmq/amqp091-go < 1.13.0`\n\nPatched in:\n\n- `github.com/rabbitmq/amqp091-go 1.13.0`\n\nSource: https://github.com/advisories/GHSA-33mj-cw25-m34h","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":51.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}