Input Validation

Flag missing input validation at trust boundaries — user-settable CR fields, webhook payloads, labels, annotations, or untrusted deserialization (CWE-20, CWE-502).

kubernetes-sigs Updated

File contents

Skill: Missing Input Validation at Trust Boundaries

  • New user-settable fields on a CR, webhook payload, label, or annotation used without explicit validation (length, regex, enum, parse).
  • Strings from obj.Spec, obj.Annotations, obj.Labels, or webhook request bodies consumed directly. Reconciler code must still nil-check optional fields the webhook has already validated.
  • Untrusted input re-parsed with permissive deserializers (yaml.Unmarshal(..., interface{}), gob, generic JSON into map[string]interface{}). Hard violation (CWE-20, CWE-502).

kubernetes-sigs/kueue/tree/main/cmd/experimental/skills/reviewer/security/input-validation commit 8844a7a37b

Frequently asked questions

npx skillmds@latest add kubernetes-sigs-kueue/input-validation