CVE-2026-105216
critical · 9.1go-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.
9.1
CVSS
0.2%
EPSS (exploit prob.)
9th
EPSS percentile
2026-10-04
Published
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-295
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
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-105216