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

Priority LOW 39CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00194 9th percentileScored 2026-11-07
Fix Fixed go-micro (micro): 6.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Micro.companygo-microbefore 6.0.06.0.0Patch availableCNA
  • go-micro VendorMicro.company Affected before 6.0.0 Fixed in 6.0.0 Patch available CNA

Remediation

  • Fix · CNA go-micro (micro) Fixed in 6.0.0

Timeline

  1. 2026-10-04 Threatist record created from CVE-2026-105216
  2. 2026-10-04 Alias added: GHSA-p6q5-cmw8-pqqg
  3. 2026-10-05 Priority changed: MEDIUM → LOW
  4. 2026-10-06 CISA SSVC decision points changed

References

  • TI-2024-06027 CollectChat < 2.4.4 - Admin+ XSS CVSS 3.1MEDIUM 4.8
  • TI-2024-20634 WordPress Form to Chat App plugin <= 1.1.6 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
  • TI-2026-18044 WordPress Form to Chat App plugin <= 1.2.5 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5

Sources