Medium 6.0Published Aug 12, 2026

CVE-2026-18677Kong Mesh: a dataplane token without a workload binding can claim any workload's SPIFFE identity

Updated under an hour ago (2026-10-19 06:20 UTC)

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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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Every CVE for Kong Inc. Kong Mesh

Exploited in the last 30 days

In Kong Mesh running in universal mode with a MeshIdentity whose SPIFFE ID path template derives from the dataplane's kuma.io/workload label, the XDS authenticator in kuma-cp validates that label only when the dataplane token is bound to a workload. Workload binding is optional, so a dataplane presenting a tags-bound token can register with kuma.io/workload set to any value and obtain another workload's SPIFFE identity.

CVSS: 6.0 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-290
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

Affected products

Kong Inc. Kong Mesh kong:mesh (from the name)	from 2.13.0 before 2.13.10; from 2.14.0 before 2.14.2	CNA record

References

https://github.com/kumahq/kuma/security/advisories/GHSA-744g-c785-x65qvendor-advisory
https://github.com/kumahq/kuma/pull/17474patch
https://github.com/kumahq/kuma/pull/17503patch
https://github.com/kumahq/kuma/pull/17502patch
https://developer.konghq.com/mesh/changelog/release-notes

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.