An artificial intelligence security system developed by Veria Labs uncovered a decade-old flaw in the XRP Ledger (XRPL) that could have allowed an attacker to generate 18 trillion XRP—roughly 180 times the asset's original 100 billion token supply.
Emergency Patch and Technical Vulnerabilities
First reported on Sept. 22 and patched on Sept. 25, the vulnerability threatened the network's $94 billion market capitalization before its public disclosure on Oct. 9. RippleX confirmed that no unauthorized XRP was created, no funds were lost, and no public exploitation occurred. The issue involved two connected bugs in rippled: an integer overflow in the payment engine dating back to 2015, and a failure in the supply-protection mechanism introduced in 2017. Executing the attack required only a few hundred XRP in refundable reserves alongside standard transaction fees.
To address the risk quickly, developers bypassed the network's standard governance process, which typically requires an 80% validator vote for two consecutive weeks. Instead, RippleX, the XRP Ledger Foundation, and validators deployed an emergency binary patch for version 3.4.1, reaching over 80% validator adoption by Sept. 25. The event highlights ongoing risks as AI exploits target XRP Ledger and code flaws before traditional audits catch them.
Record Bug Bounty and Future AI Safeguards
Despite the XRPL codebase undergoing more than 12 audits and awarding over $1 million in bug bounties, traditional security reviews missed the vulnerability. Veria Labs founder Cayden Liao received a $250,000 reward—the maximum payout available under the program and the largest recorded bounty for an AI-discovered flaw.
- Flaw Impact: Allowed single payment transactions to fabricate 18 trillion XRP through integer overflow arithmetic.
- Emergency Action: Marked the first bypass of standard amendment activation rules in over ten years to deploy version 3.4.1.
- Bounty Award: Veria Labs received $250,000 for the AI discovery.
- Network State: Zero funds lost and version 3.4.1 established as the mandatory minimum release.
Following the discovery, RippleX head of engineering J. Ayo Akinyele stated the organization will expand formal verification and AI-driven testing across legacy infrastructure. XRPL Foundation contributor Vet noted that version 3.4.1 is now the network's baseline operating requirement.
Why It Matters
This incident highlights a major shift in blockchain defense: AI tools are now capable of discovering complex, multi-layered vulnerabilities in legacy codebases that passed years of traditional security audits. While the emergency bypass of standard two-week voting rules protected the ledger without splitting consensus, it exposes the growing tension between slow decentralized governance and rapid vulnerability exploitation. Moving forward, layer-1 networks will be forced to implement continuous AI-driven verification to patch legacy code before automated systems operated by malicious actors find similar weaknesses.
