CVE-2026-18679
Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configured
Description
When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection. An on-path actor can intercept the dataplane authentication token and impersonate the control plane to the data plane, injecting a forged bootstrap configuration and taking over the proxy.
INFO
Published Date :
Aug. 12, 2026, 6:52 p.m.
Last Modified :
Aug. 12, 2026, 6:52 p.m.
Remotely Exploit :
No
Source :
Kong
Affected Products
The following products are affected by CVE-2026-18679
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb |
Solution
- Configure the data plane with a CA certificate.
- Ensure TLS peer verification is enabled.
- Restart the data plane after configuration.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-18679 vulnerability anywhere in the article.