Publish Layerfault deep challenge LF-CH-EXTDATA-0010

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "external-data-sidecar"
+  ],
+  "control_type": "negative",
+  "corpus_id": "LF-CH-EXTDATA-0010",
+  "difficulty": "adversarial",
+  "expected_decision": "PASS",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": [
+      "LF-ONNX-EXTERNAL-DATA-PATH"
+    ]
+  },
+  "oracle_ids": [
+    "LF-ORACLE-EXTDATA-0010"
+  ],
+  "related_cases": [],
+  "repo_name": "external-data-doc-path-control",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "informational",
+  "techniques": [
+    "data",
+    "doc",
+    "path",
+    "control"
+  ],
+  "transformations": []
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "README.md"
+  ],
+  "family": "extdata",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "external-data-doc-path-control"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "external-data-sidecar"
+    ],
+    "control_type": "negative",
+    "difficulty": "adversarial",
+    "expected_decision": "PASS",
+    "oracle_ids": [
+      "LF-ORACLE-EXTDATA-0010"
+    ],
+    "related_cases": [],
+    "severity": "informational",
+    "techniques": [
+      "data",
+      "doc",
+      "path",
+      "control"
+    ],
+    "transformations": []
+  },
+  "corpus_id": "LF-CH-EXTDATA-0010",
+  "description": "External data doc path control.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [
+    "LF-ONNX-EXTERNAL-DATA-PATH"
+  ],
+  "repo_name": "external-data-doc-path-control",
+  "repo_type": "model",
+  "safe_fixture": true,
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "verify-package",
+    "target": "."
+  }
+}

README.md

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+---
+license: apache-2.0
+tags:
+- layerfault
+- security-research
+- model-security
+- synthetic
+- adversarial-testing
+extra_gated_prompt: >-
+  This repository is a synthetic security-test artifact from the Layerfault
+  corpus. It intentionally contains adversarial characteristics (e.g.
+  suspicious pickle opcodes, executable-format smuggling, prompt-injection
+  strings) designed to exercise security scanner detection rules. It is
+  **not** a usable ML model and must never be loaded or executed outside an
+  isolated scanner-testing environment. By accepting, you confirm you
+  understand this repository is a test fixture, not production model
+  weights.
+extra_gated_button_content: I understand this is a security test fixture and accept the risk
+gated: auto
+---
+
+# external-data-doc-path-control
+
+> **SECURITY TEST ARTIFACT: DO NOT USE AS A PRODUCTION MODEL**
+
+This repository is part of the Layerfault synthetic security corpus.
+It is deliberately constructed to contain security-relevant characteristics for scanner testing.
+
+**Corpus ID:** `LF-CH-EXTDATA-0010`
+
+## Purpose
+
+External data doc path control.
+
+## Direct expected Layerfault rules
+
+- None; this repository is a control/comparison input.
+
+## Candidate rules
+
+These are deliberately plausible targets that remain marked as candidates until the exact
+Layerfault build used for certification confirms them.
+
+- None
+
+## Negative-control rules
+
+These should remain silent for this corpus item.
+
+- `LF-ONNX-EXTERNAL-DATA-PATH`
+
+## Safety
+
+The corpus uses fake secrets, loopback/`.invalid` network destinations, harmless marker output,
+and synthetic model behavior only. It is intended for static scanning and isolated security testing.
+
+## Challenge classification
+
+- Severity: **informational**
+- Difficulty: **adversarial**
+- Expected admission decision: **PASS**
+- Control type: **negative**
+- Attack surface: external-data-sidecar
+- Techniques: data, doc, path, control
+- Transformations: none
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-EXTDATA-0010`
+
+These oracle IDs describe synthetic ground truth. They do not claim that a
+matching Layerfault detector already exists. A challenge may intentionally expose
+a scanner blind spot and remain unmapped until the detector is implemented.

SHA256SUMS.json

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+[
+  {
+    "path": "CHALLENGE_ORACLE.json",
+    "sha256": "3e5602cd0c7cd4f14ce333c0d20f0f9292e904be2c311e2e9b142879686b8faa",
+    "size": 678
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "8a3a51e0b07582be154d4c8405f8ad6ead849421bec39ca683c3b333fee495fd",
+    "size": 203
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "61db20c6889b64da270120e209d39774c814af36ee37006e2f6e7f2b5491fc92",
+    "size": 913
+  },
+  {
+    "path": "README.md",
+    "sha256": "46e9ff0e678c3b1bd55af7b258f8df06ac1c0f35b719ba621fac8145b4d857ee",
+    "size": 2250
+  },
+  {
+    "path": "weights.bin",
+    "sha256": "f5a5fd42d16a20302798ef6ed309979b43003d2320d9f0e8ea9831a92759fb4b",
+    "size": 64
+  }
+]

weights.bin

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+version https://git-lfs.github.com/spec/v1
+oid sha256:f5a5fd42d16a20302798ef6ed309979b43003d2320d9f0e8ea9831a92759fb4b
+size 64