CVE-2026-18673Kong Mesh: the kuma-dp readiness service exposes the Envoy admin API without authentication
Updated under an hour ago ()
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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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When kuma-dp is configured with the Envoy admin API on a Unix domain socket, which is the default, its readiness service on TCP port 9902 - bound to all interfaces - forwards almost the entire Envoy admin API to any caller that can reach the port, with no authentication. An attacker with network access to a data plane's port 9902, for example another pod on the cluster network, can read Envoy and data plane configuration without credentials: config dumps, cluster and listener lists, stats, and the mesh trust bundle. Exposure is read-only - destructive Envoy admin actions are blocked and private keys are not exposed.
- CVSS
- 5.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-200, CWE-306
- 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
Kong Inc. Kong Mesh kong:mesh (from the name) | from 2.14.0 before 2.14.2 | CNA record |
References
- https://github.com/kumahq/kuma/security/advisories/GHSA-r9pv-x3pm-4r2wvendor-advisory
- https://github.com/kumahq/kuma/pull/17317patch
- https://github.com/kumahq/kuma/pull/17418patch
- https://developer.konghq.com/mesh/changelog/vendor-advisory
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.