{"id":"CVE-2026-26056","aliases":["GHSA-wj8p-jj64-h7ff","GO-2026-4493"],"url":"https://o3.security/vulnerability/CVE-2026-26056","summary":"Arbitrary WASM Code Execution via AnnotationOverrideFlight Injection in Yoke ATC","details":"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.","published":"2026-02-12T21:11:13.408Z","modified":"2026-07-31T18:30:12.968894338Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/yokecd/yoke","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26056.json"},{"type":"ADVISORY","url":"https://github.com/yokecd/yoke/security/advisories/GHSA-wj8p-jj64-h7ff"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26056"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:12.968894338Z"}}