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, ...

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

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-2026-54754

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...

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...

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...

CVE-2026-54755

Klever-Go (the Go implementation of the Klever blockchain) contains a uint32 integer overflow in split-royalty validation. Per-entry royalty percentages are decoded without an upper bound, and the validation sum wraps to zero when two crafted values (e.g., 0x80000000 each) overflow uint32, passin...

CVE-2026-54755 Klever-Go: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)

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...

EUVD-2026-67825

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...

GHSA-P7GW-2PCP-5PF8 Klever: Marketplace settlement mints KLV when referral % + royalty % exceed the bid (negative seller share silently skipped)

Summary When a marketplace order is settled MarketBuy / BuyItNow, and auction Claim, the buyer's payment is split three ways — referral, royalties, and the seller market-order owner remainder: marketOwnerAmount = CurrentBid − referralAmount − royaltiesAmount Referral and royalties are paid out...

Klever: Marketplace settlement mints KLV when referral % + royalty % exceed the bid (negative seller share silently skipped)

Summary When a marketplace order is settled MarketBuy / BuyItNow, and auction Claim, the buyer's payment is split three ways — referral, royalties, and the seller market-order owner remainder: marketOwnerAmount = CurrentBid − referralAmount − royaltiesAmount Referral and royalties are paid out...

CVE-2026-54754

Klever-Go (the Go node for the Klever blockchain) has a time-of-check/time-of-use flaw in marketplace settlement (core/kapp/market/market.go). The referral percentage is snapshotted at listing, but the royalty percentage is read live at purchase. An asset owner can raise the royalty via UpdateRoy...

CVE-2026-54754 Klever-Go: Marketplace settlement mints KLV when referral % + royalty % exceed the bid (negative seller share silently skipped)

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...

EUVD-2026-67824

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-2026-52880

Klever-Go is the Go implementation of the Klever blockchain protocol. Versions from 1.7.14 through 1.7.17 are vulnerable to a remotely triggerable denial of service. Both REST APIs are started with the Gin Engine.Run convenience method, which serves requests through Go's default HTTP server with ...

CVE-2026-47249

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.18, the P2P resolver request handling logic is vulnerable to hash-array amplification. A connected peer can send a compressed RequestDataTypeHashArrayType direct request that is only 442 bytes on the wire but expan...

CVE-2026-52880

Klever-Go is the Go implementation of the Klever blockchain protocol. Versions from 1.7.14 through 1.7.17 are vulnerable to a remotely triggerable denial of service. Both REST APIs are started with the Gin Engine.Run convenience method, which serves requests through Go's default HTTP server with ...