POPA ReconPolygon Silently Patched Severe Bugs That Could Stall Every Validator
Polygon Silently Patched Severe Bugs That Could Stall Every Validator Polygon Labs disclosed it patched a batch of security vulnerabilities through two hard forks, Austin on its Bor client and Kyoto on Heimdall, both rolled out privately and validated on the Amoy testnet before mainnet activation. The Austin fork closed two denial-of-service paths in block processing, including one where a malicious block producer could crash peer nodes by stuffing a block with an oversized data field. The Kyoto fork addressed a broader set of consensus-hardening issues, the most severe being a flaw that wou…
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