RCE in Yokecd Yoke
CVE-2026-26056
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.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.004 (32.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Yokecd Yoke — versions < 0.19.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-26056?
- CVE-2026-26056 is a high-severity vulnerability in Yokecd Yoke, classified under Code Injection. CVSS score: 8.8/10. Published 2026-02-12.
- How severe is CVE-2026-26056?
- High severity. CVSS v3 base score is 8.8 out of 10.