CVE-2026-26056
Arbitrary WASM Code Execution via AnnotationOverrideFlight Injection in Yoke ATC
Reported by github_m · Published February 12, 2026
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.
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| yokecd | yoke | < 0.19.0 |
| yokecd | yoke | 0 |
| github.com | yokecd/yoke | 0 |
Timeline
- Feb 12, 2026 CVE Published
- Feb 12, 2026 CVE Updated
- Feb 13, 2026 EPSS Score (30 in total, the first dated here)
- Feb 13, 2026 PoC Published (2 in total, the first dated here)
- Mar 22, 2026 Coalition ESS Score (2 in total, the first dated here)
- Mar 30, 2026 Security Advisory
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