Web3 security firm Halborn has finished a focused re-audit of Ripple’s XRP Ledger Lending Protocol and found no critical or high-severity flaws, clearing an important technical hurdle ahead of the feature’s activation.
What was audited
- The engagement ran from Dec. 16, 2025, to Jan. 12, 2026 and concentrated on code changes made after an earlier review. Halborn checked that the updated implementation aligns with the XLS-0066d lending specification, and evaluated transaction checks, state consistency, accounting rules, parameter limits and access controls across the protocol.
Findings and fixes
- Halborn reported five findings in total: zero criticals, zero high-risk issues, one medium, two low-risk and two informational items. The firm says 100% of the reported findings were addressed—some fixed directly by Ripple’s engineers, others were accepted or acknowledged after review.
- The one medium issue involved a potential bypass of a vault assets maximum via loan interest; Halborn marked this as resolved. One low-risk finding — a missing freeze check in LoanBrokerSet — was also fixed. The remaining items, including a degraded-state design concern, a grace-period edge case, and a cover-rate validation point, were accepted or acknowledged by Ripple based on the report’s status table.
What the protocol is
- The XRP Ledger Lending Protocol enables on-ledger, fixed-term, uncollateralized loans that draw from pooled Single Asset Vaults. Rather than relying on automated, overcollateralized mechanisms common in DeFi, the model uses off-chain underwriting and lets loan brokers set terms, manage vaults and handle borrower relationships within ledger rules. That permissioned, underwritten approach is a deliberate departure from typical open lending markets.
Why this matters
- The re-audit is another technical milestone for bringing native vaults and fixed-rate lending to XRPL, as outlined in the XLS-65 and XLS-66 amendment efforts. If vault deposits, borrower demand and locked supply grow after activation, XRP and RLUSD could see greater on-ledger utility. But adoption is not guaranteed: borrower defaults, underwriting quality and third-party participation remain key risks to watch.
Context in Ripple’s roadmap
- This security review complements Ripple’s broader push to expand XRPL use cases beyond payments. Recent developments include the XRPL AI Starter Kit for agent-driven payments (x402 standard) and earlier experiments such as a tokenized Treasury redemption test with JPMorgan, Mastercard and Ondo Finance that settled on XRPL in roughly five seconds using RLUSD.
Bottom line
- The Halborn re-audit doesn’t equate to market adoption, but it does clear a significant technical checkpoint: the protocol’s codebase passed scrutiny with no critical issues and the reported concerns were handled. The next tests will be real-world uptake — whether developers, vault operators and borrowers actually use the lending primitives and whether that activity translates into durable demand for XRP and RLUSD via fees, reserves and broader network usage.
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