The Zcash Foundation has disclosed a critical vulnerability in the Orchard privacy pool, its most advanced privacy feature. The flaw, discovered on May 29 by security researcher Taylor Hornby, could have allowed double-spending-though officials confirm no funds were ever at risk.
Developers executed a two-stage emergency fix. First, an emergency soft fork temporarily shut down Orchard transactions. Then, on Wednesday, a full network upgrade-called NU6.2-permanently restored functionality. Zcash Open Development Lab founder Josh Swihart called it "the most ambitious network upgrade in Zcash's history."
Despite the disclosure, the price of ZEC remains unaffected, continuing its rally. Over the past month, ZEC is up more than 50%, trading near $629 as of this report.