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CVE-2026-18674— Kong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifier

Quick assessment

Affected
Kong Inc. Kong Mesh
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kuma是Kuma组织开源的一个基于 Envoy 的现代化服务网格，可在任何云平台上运行，支持单区域或多区域部署，并兼容 Kubernetes 和虚拟机。 Kuma 2.7.29之前版本、2.8.0至2.9.19之前版本、2.10.0至2.11.18之前版本、2.12.0至2.12.14之前版本、2.13.0至2.13.10之前版本和2.14.0至2.14.2之前版本存在安全漏洞，该漏洞源于KDS同步过程中使用带内且由发送方控制的ControlPlane.Identifier而非连接认证的区域身份，可能导

CVSS 7.0 · High EPSS 0.23% · P14

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services

Affected Version Matrix 6

VendorProduct Version RangeStatus
Kong Inc. Kong Mesh < 2.7.29 affected
2.8.0< 2.9.19 affected
2.10.0< 2.11.18 affected
2.12.0< 2.12.14 affected
2.13.0< 2.13.10 affected
2.14.0< 2.14.2 affected
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I. Basic Information for CVE-2026-18674

Vulnerability Information
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Vulnerability Title
Kong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifier
Source: CVE Program / CVE List V5
Vulnerability Description
On a Kong Mesh global control plane, resources received over the zone-to-global KDS sync are attributed using the in-band, sender-controlled ControlPlane.Identifier rather than the authenticated zone identity derived from the connection. Authenticated zones can have the global control plane store and re-distribute those resources as belonging to another zone. The result is a cross-zone isolation bypass: the holder of a single enrolled zone's credential can inject, attribute, and overwrite resources in another zone's namespace mesh-wide. The root cause lives in Kuma's open-source KDS sync code, which Kong Mesh's control plane is built on.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Kuma 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kuma是Kuma组织开源的一个基于 Envoy 的现代化服务网格，可在任何云平台上运行，支持单区域或多区域部署，并兼容 Kubernetes 和虚拟机。 Kuma 2.7.29之前版本、2.8.0至2.9.19之前版本、2.10.0至2.11.18之前版本、2.12.0至2.12.14之前版本、2.13.0至2.13.10之前版本和2.14.0至2.14.2之前版本存在安全漏洞，该漏洞源于KDS同步过程中使用带内且由发送方控制的ControlPlane.Identifier而非连接认证的区域身份，可能导
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Kong Inc. Kong Mesh 0 ~ 2.7.29 -

II. Public POCs for CVE-2026-18674

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7252 chars
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III. Intelligence Information for CVE-2026-18674

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Patches & Fixes for CVE-2026-18674 (8)

Vendor Advisories for CVE-2026-18674 (1)

IV. Related Vulnerabilities

Same product: Kong Mesh
Same vendor: Kong Inc.
Same weakness: CWE-345

V. Comments for CVE-2026-18674

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