CVE-2026-49343

Summary of CVE-2026-49343 (Klever-Go KVM) In versions prior to 1.7.18 of Klever-Go, the account-data trie syncers leak bounded throttler slots on error paths in syncDataTrie(): StartProcessing() is called but EndProcessing() is only reached on success or a duplicate-root early return. As a result...

CVE-2026-49343 Klever-Go KVM: Throttler slot leak in trie account-data sync causes epoch bootstrap / state sync DoS

Klever-Go is the Go implementation of the Klever blockchain protocol. In versions prior to 1.7.18, the account-data trie syncers are vulnerable to a resource-exhaustion flaw that leaks bounded throttler slots on error paths. In syncDataTrie in both userAccountsSyncer.go and kappAccountsSyncer.go,...