Verify Soroban escrow contract metadata against expected hash in contractMetadata

[mikewheeleer]

Description

contractMetadata (with src/contractMetadata.integration.test.ts) loads on-chain contract details, but the backend should pin and verify expected contract metadata so a swapped or unexpected escrow contract is rejected before any webhook-driven settlement action.

Requirements and context

• Pin expected contract hash/version per network; verify fetched metadata matches before use.
• On mismatch, refuse to operate and emit a safe error via src/errors/safeErrors.ts; alert via metrics.
• Source expected values from validated sorobanEnv.ts; document rotation procedure.
• Acceptance: integration test covers matching metadata (proceed) and mismatched metadata (reject).

Suggested execution

• Fork the repo and create a branch:
  • git checkout -b security/contract-metadata-pinning
• Implement changes:
  • src/contractMetadata.ts
  • Tests: src/contractMetadata.integration.test.ts
  • Docs: docs/backend
  • Include TSDoc/NatSpec-style doc comments
  • Validate security assumptions (input validation, auth, signature verification, secret redaction, idempotency)

Test and commit

• Run tests: npm test (coverage: npm run test:ci)
• Cover edge cases
• Include test output and security notes in the PR

Example commit message

feat(stellar): pin and verify escrow contract metadata

Guidelines

• Minimum 95% line coverage on new/changed code
• No secrets in repo; use .env + deployment secrets only
• Clear documentation
• Timeframe: 96 hours from assignment

[Muyideen-js]

@Muyideen-js has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hey maintainer, i can fix this

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[drips-wave]

Congratulations, @Muyideen-js! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

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