PT-2026-71207 · Kong · Kong Mesh

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CVE-2026-18676

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Published

2026-05-14

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Updated

2026-08-12

CVSS v4.0

5.1

Medium

VectorAV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Kong Mesh (affected versions not specified)
Description The default kuma-cp configuration in Kong Mesh contains a CORS (Cross-Origin Resource Sharing) misconfiguration. This allows a malicious webpage visited by an operator to perform a cross-origin fetch() request that returns the admin bootstrap token (JWT) and signing keys, provided the control plane is reachable from the operator's browser.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Origin Validation Error

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Weakness Enumeration

Related Identifiers

CVE-2026-18676
GHSA-3VCP-CHFH-F6R2
GO-2026-5102

Affected Products

Kong Mesh