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 ...

CVE-2026-55763

creationtimestamp| type| source ---|---|--- 2026-08-28 22:35:05+00:00| published-proof-of-concept| https://github.com/klever-io/klever-go/security/advisories/GHSA-v358-wf77-39xv...

CVE-2026-55763

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, processPercentageRoyaltiesTransfer in core/kapp/accounts/accounts.go calls SubFromBalance after the split loop and after the royaltiesToPay royaltiesToPay, so a valid PercentTransferPercentage = 10000 split...

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...

GHSA-MRPP-V6PG-P54X 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 ...

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 ...

EUVD-2026-68012

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 ...

GHSA-V358-WF77-39XV klever-go: Percentage-transfer royalty skips the source debit at exactly-100% splits

Summary In processPercentageRoyaltiesTransfer the royalty pool is collected from the sender by SubFromBalance that is ordered after the split loop and after if royaltiesToPay royaltiesToPay, so a split entry of exactly 100% PercentTransferPercentage = 10000 is a valid config: it drives...

klever-go: Percentage-transfer royalty skips the source debit at exactly-100% splits

Summary In processPercentageRoyaltiesTransfer the royalty pool is collected from the sender by SubFromBalance that is ordered after the split loop and after if royaltiesToPay royaltiesToPay, so a split entry of exactly 100% PercentTransferPercentage = 10000 is a valid config: it drives...

CVE-2026-55763 Klever-Go: Percentage-transfer royalty skips the source debit at exactly-100% splits

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, processPercentageRoyaltiesTransfer in core/kapp/accounts/accounts.go calls SubFromBalance after the split loop and after the royaltiesToPay royaltiesToPay, so a valid PercentTransferPercentage = 10000 split...

CVE-2026-55763 Klever-Go: Percentage-transfer royalty skips the source debit at exactly-100% splits

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, processPercentageRoyaltiesTransfer in core/kapp/accounts/accounts.go calls SubFromBalance after the split loop and after the royaltiesToPay royaltiesToPay, so a valid PercentTransferPercentage = 10000 split...

CVE-2026-55763

CVE-2026-55763 affects Klever-Go (the Go implementation of the Klever blockchain), prior to version 1.7.19 . In processPercentageRoyaltiesTransfer (core/kapp/accounts/accounts.go), the sender's royalty debit via SubFromBalance is ordered after the split loop and after the royaltiesToPay

CVE-2026-54755

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, split-royalty fields decoded in core/kapp/builtInFunctions/utils.go can contain values greater than core.HundredPercent, and core/kapp/kda/create.go and core/kapp/kda/trigger.go sum those values in uint32...

CVE-2026-54754

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, marketplace settlement in core/kapp/market/market.go reads MarketOrderData.ReferralPercentage from the listing while reading asset.Royalties.MarketPercentage live at purchase time. An asset owner can create a...

CVE-2026-54754

creationtimestamp| type| source ---|---|--- 2026-08-28 18:35:41+00:00| published-proof-of-concept| https://github.com/klever-io/klever-go/security/advisories/GHSA-p7gw-2pcp-5pf8 2026-08-28 22:07:18+00:00| seen| https://bsky.app/profile/stemshop.bsky.social/post/3mu6eqjex2f2c 2026-08-29...

CVE-2026-54755

creationtimestamp| type| source ---|---|--- 2026-08-28 18:35:39+00:00| published-proof-of-concept| https://github.com/klever-io/klever-go/security/advisories/GHSA-cgc5-v3f2-8m2v 2026-08-28 22:07:26+00:00| seen| https://bsky.app/profile/stemshop.bsky.social/post/3mu6eqrkko42m 2026-08-29...

Klever: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)

Summary The per-entry percentages of a KDA asset's split royalties are validated by summing them into a uint32 accumulator and checking the sum against HundredPercent 10000, with no upper bound on each individual entry. Two split entries whose percentages sum to just over 2^32 wrap around below...

GHSA-CGC5-V3F2-8M2V Klever: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)

Summary The per-entry percentages of a KDA asset's split royalties are validated by summing them into a uint32 accumulator and checking the sum against HundredPercent 10000, with no upper bound on each individual entry. Two split entries whose percentages sum to just over 2^32 wrap around below...