CVE-2026-105216

CVSS 9.1 (critical) · published 2026-10-04

go-micro before 6.0.0 contains an improper certificate validation vulnerability that allows network attackers to impersonate services because the shared TLS helper sets InsecureSkipVerify to true by default. Man-in-the-middle attackers can present any certificate to intercept or modify gRPC transport, HTTP and RabbitMQ broker, and Consul or etcd registry traffic, including authentication tokens and credentials.

Weakness: CWE-295

Source: NVD CVE-2026-105216

References

• https://github.com/micro/go-micro
• https://github.com/micro/go-micro/blob/v5.30.0/internal/util/tls/tls.go#L43-L67
• https://github.com/micro/go-micro/commit/c7657f73f45cf839e643db10f28703eeab7299c3
• https://github.com/micro/go-micro/issues/2963
• https://www.vulncheck.com/advisories/go-micro-before-6.0.0-disabled-tls-certificate-verification-via-tls-config-helper

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