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CVE-2026-18679

MediumCVSS 5.8 / 10
Published Aug 12, 2026·Last modified Aug 13, 2026
Affected Components(109)
kumahq/kuma
2.11.11
kumahq/kuma
2.9.1
kumahq/kuma
0.3.2-rc2
1 / 37
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.

Risk Scores
Base Score
5.8

The vulnerability can be exploited over a local network, such as Wi-Fi. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
1.5

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.12%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Related Vulnerabilities
  • CVE-2026-52724
    Alias
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