Polygon Labs Fixes Critical Security Flaws in Two Hard Forks
Polygon Labs has addressed two critical security vulnerabilities in its proof-of-stake blockchain through private hard forks, Austin and Kyoto. The company announced that both upgrades are now required for node operators and have been deployed on mainnet without state migrations or chain resyncs.
The Austin fork targeted two denial-of-service vectors in block processing, including one where a malicious block producer could crash peer nodes by inserting an oversized data field into a block. The Kyoto fork focused on reinforcing consensus mechanisms, addressing a flaw that would have allowed an attacker to force costly, coordinated work across the entire validator set using a single crafted transaction.
Despite the swift and comprehensive security response, POL, the network's native token, did not register a price rebound following the news. According to recent CoinGecko data, POL traded around $0.09983 on Sunday, reflecting a daily decline of 2.3% and a weekly drop of 6.8%. On a one-year timeframe, POL has fallen nearly 60.8%, positioning its market capitalization close to $1.07 billion.