CVE-2026-26056
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BaseFortify

Publication date: 2026-02-12

Last updated on: 2026-04-01

Assigner: GitHub, Inc.

Description
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. It allows users with CR create/update permissions to execute arbitrary WASM code in the ATC controller context by injecting a malicious URL through the overrides.yoke.cd/flight annotation. The ATC controller downloads and executes the WASM module without proper URL validation, enabling attackers to create arbitrary Kubernetes resources or potentially escalate privileges to cluster-admin level.
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Meta Information
Published
2026-02-12
Last Modified
2026-04-01
Generated
2026-06-16
AI Q&A
2026-02-13
EPSS Evaluated
2026-06-15
NVD
CVE-2026-26056
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
yokecd yoke to 0.19.0 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
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Executive Summary

This vulnerability exists in the Air Traffic Controller (ATC) component of Yoke, a Helm-inspired infrastructure-as-code package deployer. In versions 0.19.0 and earlier, users with create or update permissions on custom resources (CR) can exploit this flaw by injecting a malicious URL through the overrides.yoke.cd/flight annotation.

The ATC controller downloads and executes a WebAssembly (WASM) module from the provided URL without properly validating it. This allows attackers to execute arbitrary WASM code in the controller's context.

As a result, attackers can create arbitrary Kubernetes resources or potentially escalate their privileges to cluster-admin level.

Impact Analysis

This vulnerability can have severe impacts including unauthorized execution of arbitrary code within the Kubernetes cluster.

Attackers can create arbitrary Kubernetes resources, which may lead to unauthorized access, data manipulation, or disruption of services.

Additionally, the vulnerability may allow privilege escalation to cluster-admin level, giving attackers full control over the Kubernetes cluster.

Overall, this can compromise the confidentiality, integrity, and availability of your Kubernetes environment.

Compliance Impact

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Detection Guidance

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