XRPL discloses critical bug: patch was already released in September

On October 9, 2026, XRPL published details of a vulnerability that could improperly create XRP. The initial report was submitted on September 22 through its bug bounty program; the report credits Cayden Liao and Veria AI.

The issue affected xrpld 3.4.0 and earlier versions: an error when adding amounts could violate supply rules. RippleX reproduced it in a local environment and raised its severity to critical.

The fix arrived with xrpld 3.4.1 in September and took effect when each server was updated. The October 9 activation mentioned in the same report refers to a different bug, related to Batch. These are two separate fixes.

According to the team, no evidence of exploitation was found on any public network. This describes what was observed; it does not prove that the bug was never exploited. Server operators should use version 3.4.1 or later to stay synchronized with the network.

Market snapshot: on Binance Spot, at 06:47 UTC on October 10, XRP was trading at 1.4090 USDT (+0.47% in 24 hours); BTC was up 0.24%. These moves do not prove a reaction to the patch. A technical fix does not eliminate price risk either.

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Educational content. Not financial advice.

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