go-micro before 6.0.0 Disabled TLS Certificate Verification via tls.Config Helper

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-105216",
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "dateUpdated": "2026-10-04T17:09:52.327Z",
    "dateReserved": "2026-10-04T13:04:00.478Z",
    "datePublished": "2026-10-04T17:09:52.327Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck",
        "dateUpdated": "2026-10-04T17:09:52.327Z"
      },
      "datePublic": "2026-06-15T00:00:00.000Z",
      "title": "go-micro before 6.0.0 Disabled TLS Certificate Verification via tls.Config Helper",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "affected": [
        {
          "vendor": "micro",
          "product": "go-micro",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.0.0"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Improper Certificate Validation",
              "cweId": "CWE-295",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/micro/go-micro/issues/2963",
          "name": "GitHub Issue #2963",
          "tags": [
            "issue-tracking"
          ]
        },
        {
          "url": "https://github.com/micro/go-micro/commit/c7657f73f45cf839e643db10f28703eeab7299c3",
          "tags": [
            "patch"
          ]
        },
        {
          "url": "https://github.com/micro/go-micro/blob/v5.30.0/internal/util/tls/tls.go#L43-L67",
          "tags": [
            "technical-description"
          ]
        },
        {
          "url": "https://github.com/micro/go-micro",
          "tags": [
            "product"
          ]
        },
        {
          "url": "https://www.vulncheck.com/advisories/go-micro-before-6.0.0-disabled-tls-certificate-verification-via-tls-config-helper",
          "name": "VulnCheck Advisory: go-micro before 6.0.0 Disabled TLS Certificate Verification via tls.Config Helper",
          "tags": [
            "third-party-advisory"
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS"
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "attackVector": "NETWORK",
            "attackComplexity": "HIGH",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Siyang Wu",
          "type": "finder"
        }
      ]
    }
  }
}