CVE-2026-50166
Published:September 15, 2026
Updated:September 22, 2026
Kuma is a modern Envoy-based service mesh that can run on every cloud across both Kubernetes and VMs. Prior to 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7, a kumactl profile manually configured for an HTTPS control plane without --ca-cert-file disables TLS peer verification and sends API tokens over the unverified connection. An attacker on the network path can intercept user or administrator API tokens and act against the control plane as the compromised user. The default local profile is unaffected because it uses plain HTTP. This issue is fixed in versions 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7.
Affected Packages
github.com/kumahq/kuma/v2 (GO):
Affected version(s) >=v2.0.0-20251106102943-fa7b39e3e912 <v2.7.26Fix Suggestion:
Update to version v2.7.26github.com/kumahq/kuma/v2 (GO):
Affected version(s) >=v2.13.0 <v2.13.7Fix Suggestion:
Update to version v2.13.7github.com/kumahq/kuma/v2 (GO):
Affected version(s) >=2.8.0 <2.9.16Fix Suggestion:
Update to version 2.9.16Related Resources (10)
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Contact UsCVSS v4
Base Score:
5.5
Attack Vector
ADJACENT
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
7.9
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Certificate Validation
EPSS
Base Score:
0.18