CVE-2026-105216
go-micro before 6.0.0 Disabled TLS Certificate Verification via tls.Config Helper
- State
- Published
- Severity
- 9.1 Critical
- Published
- Oct 4, 2026
- Updated
- Oct 27, 2026
- Reserved
- Oct 4, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.1 Critical | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.4 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-295 Improper Certificate Validation
Affected Products
| Product | Versions |
|---|---|
go-micromicro |
|
References
- GitHub Issue #2963issue-tracking
- https://github.com/micro/go-micro/commit/c7657f73f45cf839e643db10f28703eeab7299c3patch
- https://github.com/micro/go-micro/blob/v5.30.0/internal/util/tls/tls.go#L43-L67technical-description
- https://github.com/micro/go-microproduct
- VulnCheck Advisory: go-micro before 6.0.0 Disabled TLS Certificate Verification via tls.Config Helperthird-party-advisory
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