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.
CVE-2026-105216
HIGHPre-NVD 7.47.4—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 7.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-10-04. The CNA's CVSS baseline 7.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, ghsa
7.4EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.4Exploit: None knownExposed services: Not assessed
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
- CVSS v3
- 7.4
- EG Score
- 7.4HIGHhigh confidence
- EG Risk
- 38EG Risk 38/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity74% × 45%Exploitation0% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).
No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 4, 2026
Last Modified
October 5, 2026
Advisory Details (4)
Auto-updated Oct 4, 2026No patch confirmed yet.
generic
go-micro before 6.0.0 Disabled TLS Certificate Verification via tls.Config Helper | Advisories | VulnCheck
https://www.vulncheck.com/advisories/go-micro-before-6.0.0-disabled-tls-certificate-verification-via-tls-config-helpergeneric
GitHub - micro/go-micro: A framework for building agents and services · GitHub
https://github.com/micro/go-microgeneric
go-micro/internal/util/tls/tls.go at v5.30.0 · micro/go-micro · GitHub
https://github.com/micro/go-micro/blob/v5.30.0/internal/util/tls/tls.go#L43-L67generic
CWE-295: TLS certificate verification disabled by default (InsecureSkipVerify=true) for all service-to-service communication · Issue #2963 · micro/go-micro · GitHub
https://github.com/micro/go-micro/issues/2963Vendor Advisories for CVE-2026-105216(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 7× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-05 12:00 UTCGHSA enrichment
- 2026-10-05 01:02 UTCEG score recompute
- 2026-10-05 01:01 UTCGHSA enrichment
- 2026-10-04 18:30 UTCEG score recompute
- 2026-10-04 18:30 UTCGHSA enrichment
- 2026-10-04 17:18 UTCEG score recompute
- 2026-10-04 17:18 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-105216?
CVE-2026-105216 is a high vulnerability published on October 4, 2026. 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…
When was CVE-2026-105216 disclosed?
CVE-2026-105216 was first published on October 4, 2026, with the most recent update on October 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-105216?
CVE-2026-105216 has a CVSS base score of 7.4 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-105216?
No fix for CVE-2026-105216 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-105216 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-105216
Is Your Infrastructure Affected by CVE-2026-105216?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.