CVE-2026-55764

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, Klever-Go allows a mint-role holder to bypass a finite per-nonce MaxSupply on the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation performed meta.Circulation ...

klever-go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupply

Summary On the SFT add-quantity path the only supply bound is SFTAddCirculation, which does meta.Circulation += amount with no overflow guard, then checks if meta.Circulation meta.MaxSupply && meta.MaxSupply != 0. If amount overflows int64 and wraps negative, negative MaxSupply is false, the cap...

CVE-2026-55764

Klever-Go (the Go implementation of the Klever blockchain protocol), prior to 1.7.19 , contains a signed int64 overflow in the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation added amount to meta.Circulation before comparing against MaxSupply, ...

CVE-2026-55764 Klever-Go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupply

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, Klever-Go allows a mint-role holder to bypass a finite per-nonce MaxSupply on the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation performed meta.Circulation ...

PT-2026-83346

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.19 Description Klever-Go, a Go implementation of the Klever blockchain protocol, contains an integer overflow issue in the semi-fungible token SFT add-quantity path. In the SFTAddCirculation function within...