{"id":"CVE-2026-50545","aliases":["GHSA-wmgg-3p4h-48x7","GO-2026-5860"],"url":"https://o3.security/vulnerability/CVE-2026-50545","summary":"Fission Environment CRD PodSpec Injection Leading to Node Escape and Cluster Takeover","details":"Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, the Environment.spec.runtime.podSpec / spec.builder.podSpec passthrough lacked validation, and MergePodSpec propagated dangerous fields into the generated pods. This issue has been patched in version 1.24.0.","published":"2026-06-10T17:26:20.647Z","modified":"2026-08-12T03:51:13.957471311Z","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/fission/fission","fixedVersion":"1.24.0"}],"fix":{"url":"https://github.com/fission/fission/pull/3390","label":"fission/fission#3390"},"references":[{"type":"WEB","url":"https://github.com/fission/fission/releases/tag/v1.24.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50545.json"},{"type":"ADVISORY","url":"https://github.com/fission/fission/security/advisories/GHSA-wmgg-3p4h-48x7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50545"},{"type":"FIX","url":"https://github.com/fission/fission/pull/3390"},{"type":"FIX","url":"https://github.com/fission/fission/pull/3391"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:13.957471311Z"}}