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...

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...

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...

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...

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-2026-54754 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...

PT-2026-83345

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.19 Description An issue exists in the processPercentageRoyaltiesTransfer function within core/kapp/accounts/accounts.go where the royalty pool is debited from the sender using SubFromBalance only after the split...

PT-2026-83228

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.19 Description An integer overflow exists in the handling of split-royalty fields. The software validates split royalties by summing them into a uint32 accumulator and checking if the total is within...

PT-2026-83227

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.19 Description A time-of-check/time-of-use TOCTOU issue exists in the marketplace settlement process. While the system ensures that the combined referral and royalty percentages do not exceed 100% at the time of...

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...

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 ...

CVE-2026-52880

Klever-Go REST API (seednode and node) in versions 1.7.14–1.7.17 is affected by a denial-of-service via slow-header connections. The issue stems from Gin Engine.Run using Go’s default http.ListenAndServe with no ReadHeaderTimeout, ReadTimeout, or MaxHeaderBytes, allowing an unauthenticated client...

CVE-2026-52880 Klever-Go: REST API slow-header connection exhaustion via Gin Engine.Run

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-2026-52879 Klever-Go: Unbounded goroutine spawn on direct-message ingress enables peer-driven DoS

Klever-Go is the Go implementation of the Klever blockchain protocol. In versions 1.7.14 through 1.7.17, the direct-message ingress handler spawns a new goroutine for every incoming direct message before the processor-level antiflood layer makes any admission decision, with no semaphore, throttle...