CVE-2026-26056CWE-94

Arbitrary WASM Code Execution via AnnotationOverrideFlight Injection in Yoke ATC

High · published February 12, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
50.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00650 · 50.5th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-02-12T21:11Z
EPSS history
Timeline
  • 12 FEB 21:11Z
    Arbitrary WASM Code Execution via AnnotationOverrideFlight Injection in Yoke ATC
    cvelistv5