CVE-2026-18676mediumCWE-346CWE-942

CVE-2026-18676: falha de média gravidade em Kong Mesh

Kong Mesh: default control plane config leaks the admin token cross-origin via a CORS wildcard and localhost admin

Publicada em · Atualizada em

Seguir esta CVE+ Monitorar Kong Mesh+ Monitorar github.com/kumahq/kuma

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 5.1epss 0.3%
The default kuma-cp configuration in Kong Mesh reveals the admin bootstrap token and signing keys to any webpage the operator visits while the control plane is reachable from their browser. Due to a CORS misconfiguration a cross-origin fetch() from a malicious page returns the admin JWT and signing material.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Produtos afetados
Kong Inc. · Kong Mesh
CVEs relacionadas — Kong Mesh

No mesmo produto, das mais perigosas para as menos.

CVE-2026-18677MEDIUMKong Mesh: a dataplane token without a workload binding can claim any workload's SPIFFE identityEPSS 0.6%CVE-2026-18675MEDIUMKong Mesh: control plane denial of service via a malformed dataplane token with a non-string JWT kidEPSS 0.6%CVE-2026-18674HIGHKong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifierEPSS 0.6%CVE-2026-18673MEDIUMKong Mesh: the kuma-dp readiness service exposes the Envoy admin API without authenticationEPSS 0.5%CVE-2026-18679MEDIUMKong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configuredEPSS 0.2%CVE-2026-18678MEDIUMKong Mesh: kumactl connects to the control plane without verifying the TLS certificate when no CA is configuredEPSS 0.1%