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CVE-2026-26056— Arbitrary WASM Code Execution via AnnotationOverrideFlight Injection in Yoke ATC

Quick assessment

Affected
yokecd yoke
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

yoke是YokeCD开源的一个Kubernetes包管理工具。 Yoke 0.19.0及之前版本存在代码注入漏洞，该漏洞源于Air Traffic Controller组件缺乏适当的URL验证，允许具有CR创建或更新权限的用户通过注入恶意URL执行任意WASM代码，可能导致创建任意Kubernetes资源或权限提升。

CVSS 8.8 · High EPSS 0.65% · P51
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I. Basic Information for CVE-2026-26056

Vulnerability Information
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Vulnerability Title
Arbitrary WASM Code Execution via AnnotationOverrideFlight Injection in Yoke ATC
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
yoke 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
yoke是YokeCD开源的一个Kubernetes包管理工具。 Yoke 0.19.0及之前版本存在代码注入漏洞，该漏洞源于Air Traffic Controller组件缺乏适当的URL验证，允许具有CR创建或更新权限的用户通过注入恶意URL执行任意WASM代码，可能导致创建任意Kubernetes资源或权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
yokecd yoke < 0.19.0 -

II. Public POCs for CVE-2026-26056

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III. Intelligence Information for CVE-2026-26056

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Vendor Advisories for CVE-2026-26056 (1)

IV. Related Vulnerabilities

Same product: yoke
Same vendor: yokecd
Same weakness: CWE-94