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TI-2026-15304 Aliases CVE-2026-18677GHSA-6p7w-xxw9-j47f

Kong Mesh: a dataplane token without a workload binding can claim any workload's SPIFFE identity

Priority LOW 28CWE-290Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-290.

Summary

In Kong Mesh running in universal mode with a MeshIdentity whose SPIFFE ID path template derives from the dataplane's kuma.io/workload label, the XDS authenticator in kuma-cp validates that label only when the dataplane token is bound to a workload. Workload binding is optional, so a dataplane presenting a tags-bound token can register with kuma.io/workload set to any value and obtain another workload's SPIFFE identity.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00583 48th percentileScored 2026-11-07
Fix Fixed Kong Mesh (Kong Inc.): 2.13.10, 2.14.2

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 Mesh2.13.0 to before 2.13.10; 2.14.0 to before 2.14.22.13.10, 2.14.2Patch availableCNA
  • Kong Mesh VendorKong Inc. Affected 2.13.0 to before 2.13.10; 2.14.0 to before 2.14.2 Fixed in 2.13.10, 2.14.2 Patch available CNA

Remediation

  • Fix · CNA Kong Mesh (Kong Inc.) Fixed in 2.13.10, 2.14.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18677
  2. 2026-10-03 Alias added: GHSA-6p7w-xxw9-j47f

References

Patch 3

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