CVE-2026-18676: Kong Mesh: default control plane config leaks the admin token cross-origin via a CORS wildcard and localhost admin
Kong Inc. · Kong Mesh
Vendor fix available · Affected: Kong Inc. Kong Mesh · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 22% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Kong Inc. · Kong Meshbefore 2.7.25; from 2.8.0 before 2.9.15; from 2.10.0 before 2.11.13; from 2.12.0 before 2.12.10; from 2.13.0 before 2.13.5
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Kong Inc.
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-18676 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.