{"cve":"CVE-2026-18678","nvd":{"published":"2026-08-12T19:17:31.323","modified":"2026-10-23T19:10:00.167","status":"Awaiting Analysis","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.\n\n\n\nAn 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_v4":{"vector":"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","score":5.5},"cvss_v3":null,"cwes":["CWE-295"],"references":["https://developer.konghq.com/mesh/changelog/","https://github.com/kumahq/kuma/pull/16777","https://github.com/kumahq/kuma/security/advisories/GHSA-v95x-xhq5-4929"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:35.584907681+00:00"},"epss":{"cve":"CVE-2026-18678","score":0.00128,"percentile":0.0241,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-v95x-xhq5-4929","url":"https://osv.dev/vulnerability/GHSA-v95x-xhq5-4929","summary":"kumactl connects to control plane without verifying TLS certificate when no CA is configured","modified":"2026-08-13T04:11:05.270163837Z","packages":[{"ecosystem":"Go","name":"github.com/kumahq/kuma/v2","purl":"pkg:golang/github.com/kumahq/kuma/v2","ranges":["<2.7.26"],"fixed":["2.7.26"]},{"ecosystem":"Go","name":"github.com/kumahq/kuma/v2","purl":"pkg:golang/github.com/kumahq/kuma/v2","ranges":[">=2.8.0 <2.9.16"],"fixed":["2.9.16"]},{"ecosystem":"Go","name":"github.com/kumahq/kuma/v2","purl":"pkg:golang/github.com/kumahq/kuma/v2","ranges":[">=2.10.0 <2.11.14"],"fixed":["2.11.14"]},{"ecosystem":"Go","name":"github.com/kumahq/kuma/v2","purl":"pkg:golang/github.com/kumahq/kuma/v2","ranges":[">=2.12.0 <2.12.11"],"fixed":["2.12.11"]},{"ecosystem":"Go","name":"github.com/kumahq/kuma/v2","purl":"pkg:golang/github.com/kumahq/kuma/v2","ranges":[">=2.13.0 <2.13.7"],"fixed":["2.13.7"]},{"ecosystem":"Go","name":"github.com/kumahq/kuma","purl":"pkg:golang/github.com/kumahq/kuma","ranges":["<=1.8.1"],"fixed":[]}]},{"id":"GO-2026-6010","url":"https://osv.dev/vulnerability/GO-2026-6010","summary":"kumactl connects to control plane without verifying TLS certificate when no CA is configured in github.com/kumahq/kuma","modified":"2026-08-13T04:11:05.270163837Z","packages":[{"ecosystem":"Go","name":"github.com/kumahq/kuma","purl":"pkg:golang/github.com/kumahq/kuma","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/kumahq/kuma/v2","purl":"pkg:golang/github.com/kumahq/kuma/v2","ranges":["<2.7.26",">=2.9.13 <2.11.14",">=2.12.4 <2.12.11",">=2.13.0 <2.13.7"],"fixed":["2.7.26","2.11.14","2.12.11","2.13.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}