twzrd-x402-gate@0.14.0
Buyer-side x402 trust gate: free preflight before signing USDC on Solana + Base mainnet (eip155:8453). By default no signing if preflight is down; TWZRD_FAIL_OPEN overrides. Other EVM: unscored.
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe package performs default runtime telemetry after successful payments, sending a merchant wallet, settlement transaction identifier, and resource URL to its Intel service. The opt-out and omission of response bodies reduce the risk, but the undisclosed collection warrants a warning.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
A user runs the safe-fetch flow and the payment succeeds.
Impact
The service receives transaction identifiers and the requested resource URL, which may contain sensitive query data.
Mechanism
The package posts the merchant wallet, settlement transaction identifier, resource URL, network, and delivery metadata. Capture is on by default, with an opt-out.
AI rationale
The package performs default runtime telemetry after successful payments, sending a merchant wallet, settlement transaction identifier, and resource URL to its Intel service. The opt-out and omission of response bodies reduce the risk, but the undisclosed collection warrants a warning.
Evidence
dist/safe-fetch.jsdist/delivery-capture.jsdist/config.js
Network endpoints1
intel.twzrd.xyz/v1/intel/delivery-observation
Decision evidence
public snapshotAI called this Suspicious at 91.0% confidence as Unknown with medium false-positive risk.
Evidence for warning
- After a successful safe-fetch payment, the package calls delivery-observation capture with the merchant wallet and payment result.
- The observation includes the merchant wallet and settlement transaction identifier.
- The observation also includes the resource URL and is POSTed to the delivery-observation endpoint under the configured Intel service.
- Capture is enabled unless explicitly disabled with an option or environment variable.
- The capture code says it sends no response bodies, which limits but does not remove the data exposure.
Evidence against
- The package’s stated purpose is to preflight payments, and this capture runs only after a payment succeeds.
- The capture reports payment and delivery metadata; the source says response bodies are not shipped.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
5 flaggedbin/twzrd-safe-fetch.jsView file
5*/
L6: import { spawnSync } from "node:child_process";
L7: import { existsSync } from "node:fs";
High
Child Process
Package source references child process execution.
bin/twzrd-safe-fetch.jsView on unpkg · L5bin/twzrd-gate-eval-refuse.jsView file
28const pkgRoot = join(__dirname, "..");
L29: const require = createRequire(import.meta.url);
L30:
Medium
Dynamic Require
Package source references dynamic require/import behavior.
bin/twzrd-gate-eval-refuse.jsView on unpkg · L28bin/twzrd-gate-doctor.jsView file
33// tsx resolves `src` by absolute path, so the user's cwd is safe to keep.
L34: const r = spawnSync("npx", ["--yes", "tsx", src, ...process.argv.slice(2)], {
L35: stdio: "inherit",
Findings
1 Critical3 High4 Medium5 Low
CriticalPrevious Version Dangerous Deltadist/safe-fetch.js
HighChild Processbin/twzrd-safe-fetch.js
HighRuntime Package Installbin/twzrd-gate-doctor.js
HighSemantic Analysis Limiteddist/evidence-verify.js#virtual:normalized:round1
MediumDynamic Requirebin/twzrd-gate-eval-refuse.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to twzrd-x402-gate@0.14.0.
See all versions of twzrd-x402-gate for other recorded verdicts.
- Review the evidence and your use of twzrd-x402-gate@0.14.0 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.