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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
yokecd / yoke	affected < 0.19.0

CWE

CWE-94

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.