CVE-2026-18678

MEDIUM

CVE: CVE-2026-18678 - When an operator adds an HTTPS control plane profile to kumactl without providing a CA certificate, kumactl disables TLS verification and...Sign in to save

CVSS

5.5

CVSS v4.0

EPSS

N/A

Exploit Prediction Score

Published

August 12, 2026

Exploitability

No EPSS data available

Description

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.

Weaknesses

CWE-295

Affected Packages

No package data available.

Aliases

CVE-2026-18678

Related references

Publisher and database URLs for this record (shown for attribution; reading stays in Bugflare).

https://developer.konghq.com/mesh/changelog/
https://github.com/kumahq/kuma/pull/16777
https://github.com/kumahq/kuma/security/advisories/GHSA-v95x-xhq5-4929