yokecd yoke up to 0.19.0 WASM missing authentication

Summaryinfo

A vulnerability identified as critical has been detected in yokecd yoke up to 0.19.0. Impacted is an unknown function of the component WASM Module. This manipulation causes missing authentication. This vulnerability appears as CVE-2026-26055. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in yokecd yoke up to 0.19.0. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component WASM Module. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. The ATC webhook endpoints lack proper authentication mechanisms, allowing any pod within the cluster network to directly send AdmissionReview requests to the webhook, bypassing Kubernetes API Server authentication. This enables attackers to trigger WASM module execution in the ATC controller context without proper authorization.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-26055 since 02/10/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/12/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• yokecd

Name

• yoke

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19.0

Website

• Product: https://github.com/yokecd/yoke/

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