Medium 5.5Published Aug 12, 2026

CVE-2026-18678Kong Mesh: kumactl connects to the control plane without verifying the TLS certificate when no CA is configured

Updated under an hour ago (2026-10-19 09:10 UTC)

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It affects Kong Inc. Kong Mesh. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Kong Inc. Kong Mesh

Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v4.0, CNA)CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
Weakness (CWE): CWE-295
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Kong
NVD analysis: Awaiting Analysis
Record last updated: Aug 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Kong Inc. Kong Mesh kong:mesh (from the name)	before 2.7.26; from 2.8.0 before 2.9.16; from 2.10.0 before 2.11.14; from 2.12.0 before 2.12.11; from 2.13.0 before 2.13.7	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.