Ripple has announced the completion of a renewed security audit for the highly anticipated XRPL Lending Protocol, a major decentralized finance (DeFi) innovation on the XRP Ledger. The review, conducted by leading Web3 security firm Halborn, confirmed all previously identified issues were either addressed, accepted, or properly managed by Ripple’s core engineering team.
Scope of the renewed audit
The XRPL Lending Protocol was built according to the XLS 0066d standard, and is positioned as a foundational DeFi component enabling fixed-term, unsecured on-chain loans via pooled funds held in a Single Asset Vault. Ripple, the US-based technology powerhouse renowned for institutional blockchain solutions and payment infrastructure, has continued reinforcing security measures as DeFi opportunities expand on the XRP Ledger.
Halborn initiated a difference-focused re-audit between mid-December 2025 and January 2026. The security team scrutinized critical updates made to the codebase after the original audit conducted in the summer, aiming to verify the new implementation’s compliance with the XLS 0066d framework and its overall security.
In its renewed audit, Halborn found no critical or high-severity security vulnerabilities, stating all five findings from the earlier report had been resolved.
Key technical areas reviewed
The audit covered transaction validation logic, state consistency, parameter controls, and access authorizations. Utilizing a comprehensive approach, Halborn deployed a blend of technical specification review, code divergence analysis, manual code inspection, and automated static analysis, all while examining the XRP Ledger’s unique three-stage transaction processing model.
Quick glossary: Static analysis means reviewing software source code for errors and security risks without running it. The preclaim phase on XRPL is an interim step before executing a transaction, performing essential eligibility checks.
Addressed findings and resolved risks
Among the reported issues, one was missing validation that could have allowed a vault’s total assets to breach preset limits due to interest accumulation. Ripple stated this issue was resolved and said its engineering team had actually detected and fixed the bug independently before the audit began.
Another finding highlighted a theoretical issue where users could create a LoanBroker on a frozen vault, potentially allocating reserve funds unnecessarily. Ripple eliminated this risk by introducing a freeze check compatible with the protocol’s preclaim phase, thus ensuring proper operational integrity.
The renewed audit demonstrated that 100% of the identified findings had been addressed, representing a pivotal technical milestone for the XRPL Lending Protocol.
According to Halborn’s classification, there were no critical or high-severity vulnerabilities at the conclusion of their review. The transparent remediation of all five findings brings greater technical certainty as XRPL Lending Protocol moves into its next stage of development.
