{
  "cve": "CVE-2026-5199",
  "variant_stage_outcome": "no_variant_found",
  "validation_status": "not_confirmed",
  "bypass_found": false,
  "alternate_trigger_found": false,
  "distinct_variant_validated": false,
  "details": {
    "variant_attempts": 7,
    "attempts_description": [
      "Nil Request bypass: BLOCKED on both versions (panics on v1.29.4, caught by checkNamespaceProtobuf on v1.29.5)",
      "Non-protobuf BatchActivity path: BLOCKED on both versions (existing checkNamespace validation)",
      "Cancel operation type with mismatched namespace: BYPASSED on v1.29.4, BLOCKED on v1.29.5 by checkNamespaceProtobuf",
      "Case-insensitive namespace name: BYPASSED on v1.29.4, BLOCKED on v1.29.5 by exact string comparison",
      "Reset operation type with mismatched namespace: BYPASSED on v1.29.4, BLOCKED on v1.29.5 by checkNamespaceProtobuf and belt-and-suspenders parameter fix",
      "Direct startTaskProcessorProtobuf namespace injection: Would use forged namespace if validation bypassed, but function is unexported and unreachable",
      "Empty namespace string with valid NamespaceId: BYPASSED on v1.29.4, BLOCKED on v1.29.5 by checkNamespaceProtobuf"
    ],
    "vulnerable_version_test_result": "Multiple alternate triggers of the same root cause confirmed on v1.29.4 (all operation types, case differences, empty namespace)",
    "fixed_version_test_result": "All 7 variant hypotheses were blocked on v1.29.5 by checkNamespaceProtobuf and the worker-bound namespace derivation",
    "fix_completeness_assessment": "The fix is comprehensive. It validates both NamespaceId and Request.Namespace against the worker-bound namespace, and uses the worker-bound namespace for all downstream internal frontend client calls.",
    "blocking_mitigation": "Commit 90738c6200 (Check namespaces in batch workflow) added checkNamespaceProtobuf and changed BatchActivityWithProtobuf to derive ns := a.namespace.String() for all downstream usage."
  },
  "tested_versions": {
    "vulnerable": "v1.29.4",
    "fixed": "v1.29.5"
  },
  "artifacts": {
    "reproduction_script": "vuln_variant/reproduction_steps.sh",
    "variant_test_file": "vuln_variant/variant_test.go",
    "rca_report": "vuln_variant/rca_report.md",
    "patch_analysis": "vuln_variant/patch_analysis.md",
    "variant_manifest": "vuln_variant/variant_manifest.json",
    "logs_vulnerable": "logs/variant_v1.29.4.log",
    "logs_fixed": "logs/variant_v1.29.5.log"
  },
  "timestamp": "2026-05-28T17:00:00Z"
}