CVE-2026-50166CWE-295

CVE-2026-50166

published September 15, 2026

CVSS
5.5
EPSS
0%
Percentile
18.8
In the wild
Unconfirmed
What it is

Kuma is a modern Envoy-based service mesh that can run on every cloud across both Kubernetes and VMs. Prior to 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7, a kumactl profile manually configured for an HTTPS control plane without --ca-cert-file disables TLS peer verification and sends API tokens over the unverified connection. An attacker on the network path can intercept user or administrator API tokens and act against the control plane as the compromised user. The default local profile is unaffected because it uses plain HTTP. This issue is fixed in versions 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7.

The record
Technical detail
CVSS
5.5 · NONE
CVSS v4.0
5.5 · CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
EPSS
0.00275 · 18.8th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2026-09-15T19:17Z
References (8)
https://github.com/kumahq/kuma/commit/2d0fb382924598f8746bc85c896f50384675940f · [email protected]https://github.com/kumahq/kuma/commit/85716397ffa404234bf365da0967eca0b0fa1870 · [email protected]https://github.com/kumahq/kuma/commit/a256af4869ae7e0ebbc2a14dc231e04ac8df1ba3 · [email protected]https://github.com/kumahq/kuma/commit/bb56ae628753aaec1f7846a514ab4edc35c0b569 · [email protected]https://github.com/kumahq/kuma/commit/d4ae0c0151596be991897651f20c5cdf32de1980 · [email protected]https://github.com/kumahq/kuma/commit/eb81494c2c7a5536e55c19cdde51b02a03b51e11 · [email protected]https://github.com/kumahq/kuma/pull/16777 · [email protected]https://github.com/kumahq/kuma/security/advisories/GHSA-v95x-xhq5-4929 · [email protected]
EPSS history
Timeline
  • 17 SEP 03:31Z
    EPSS moved — → 0%
    epss
  • 15 SEP 14:52Z
    Kuma: kumactl connects to control plane without verifying TLS certificate when no CA is configured
    cvelistv5