CVE-2026-26056

Arbitrary WASM Code Execution via AnnotationOverrideFlight Injection in Yoke ATC

State: Published
Severity: 8.8 High
Published: Feb 12, 2026
Updated: Feb 12, 2026
Reserved: Feb 10, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected Products

Product	Versions
yokeyokecd	< 0.19.0Affected

References

https://github.com/yokecd/yoke/security/advisories/GHSA-wj8p-jj64-h7ff

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