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TI-2026-15305 Aliases CVE-2026-18678GHSA-26pg-x7g5-9g43

Kong Mesh: kumactl connects to the control plane without verifying the TLS certificate when no CA is configured

Priority LOW 24CWE-295Published · Updated

Key facts

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

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

Summary

When an operator adds an HTTPS control plane profile to kumactl without providing a CA certificate, kumactl disables TLS verification and sends API tokens over the unverified connection. An attacker on the network path between the operator and the control plane can intercept user or admin API tokens and then act against the control plane as that user.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00128 2nd percentileScored 2026-11-07
Fix Fixed Kong Mesh (Kong Inc.): 2.7.26, 2.9.16, 2.11.14 +2

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
Kong Inc.Kong Meshbefore 2.7.26; 2.8.0 to before 2.9.16; 2.10.0 to before 2.11.14; 2.12.0 to before 2.12.11; 2.13.0 to before 2.13.72.7.26, 2.9.16, 2.11.14, 2.12.11, 2.13.7Patch availableCNA
  • Kong Mesh VendorKong Inc. Affected before 2.7.26; 2.8.0 to before 2.9.16; 2.10.0 to before 2.11.14; 2.12.0 to before 2.12.11; 2.13.0 to before 2.13.7 Fixed in 2.7.26, 2.9.16, 2.11.14, 2.12.11, 2.13.7 Patch available CNA

Remediation

  • Fix · CNA Kong Mesh (Kong Inc.) Fixed in 2.7.26, 2.9.16, 2.11.14, 2.12.11, 2.13.7

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Kong Mesh 2.11.14, 2.12.11 and 3 more versions

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-15306 Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configuredPriority LOW 25
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18678
  2. 2026-10-03 Alias added: GHSA-26pg-x7g5-9g43

References

Patch 1

Advisory 1

Other 1

  • TI-2020-17871 The official kong docker images before 1.0.2-alpine (Alpine specific) contain a blank… CVSS 3.1CRITICAL 9.8
  • TI-2025-00925 Arbitrary Code Execution in Kong Insomnia Desktop Application CVSS 4.0CRITICAL 9.3
  • TI-2026-12562 Kong API Gateway Enterprise: SAML Authentication bypass CVSS 4.0HIGH 7.7
  • TI-2026-12561 Kong API Gateway Enterprise: JWT Algorithm-Confusion CVSS 4.0HIGH 7.7
  • TI-2020-18854 Kong lua-multipart multipart.lua is_header redos CVSS 3.1HIGH 7.5
  • TI-2026-70893 SQL injection in Kong Gateway clustering communication CVSS 4.0HIGH 7.5
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences