{"items":[{"id":"NVI-00017730","kind":"vulnerability","title":"Fission Environment CRD podspec passthrough enables hostPID/hostNetwork/privileged pods, node escape","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-gx55-f84r-v3r7","CVE-2026-50564"],"plain_summary":"GitHub lists this reviewed advisory for github.com/fission/fission. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-50bc74af989f45135f96b8bd087dcda9"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-30T18:19:33.000Z","value":"9.9 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-50bc74af989f45135f96b8bd087dcda9"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-50bc74af989f45135f96b8bd087dcda9","url":"https://github.com/advisories/GHSA-gx55-f84r-v3r7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-gx55-f84r-v3r7","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T11:39:31.286Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-50bc74af989f45135f96b8bd087dcda9"],"technology":"github.com/fission/fission","known_exclusions":[],"conditions_summary":"### Summary\n\nFission's `Environment` CRD exposes `spec.runtime.podSpec` and `spec.builder.podSpec`, which are merged into the Kubernetes pod specs for runtime and builder pods. The merge logic propagated `hostNetwork`, `hostPID`, `hostIPC`, container\n `privileged`, and `serviceAccountName` from the user-supplied podspec with no filtering, and `Environment.Validate` performed no security-relevant checks on these fields.\n\n### Details\n\nA namespace user with `create`/`update` on `environments.fission.io` could produce privileged, host-network, hostPID pods in the Fission function or builder namespace. Because the Helm chart created the `fission-function` and\n`fission-builder` namespaces with no `pod-security.kubernetes.io/enforce` labels, Kubernetes Pod Security Admission did not catch the escape either.\n\nFrom a host-network privileged pod with hostPID, the attacker could `nsenter` into the host, read cloud-metadata credentials, access the container-runtime socket, pivot to other namespaces, and fully compromise the node.\n\n### Impact\n\n`environments.fission.io` create/update RBAC is escalated to node compromise — host filesystem and network access on the scheduling node, and from there ","public_affected_ranges":["<= 1.23.0"]}],"null_published_at":"2026-11-05T19:10:21.457Z","source_updated_at":"2026-06-30T18:19:33.000Z","source_disclosed_at":"2026-06-30T18:19:32.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-05T11:39:31.286Z"}],"next_cursor":null,"snapshot_revision":"42594"}