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OpenAdvisories
High · 8.7 CVE-2026-55763 EUVD-2026-67942GHSA-v358-wf77-39xvGO-2026-6323

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

Published Aug 28, 2026 · Updated Aug 31, 2026 · Assigned by GitHub_M

Description

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 <= 0 early return. computeSplitRoyalties rejects only when splitToPay > royaltiesToPay, so a valid PercentTransferPercentage = 10000 split consumes exactly 100 percent of the royalty pool, sets royaltiesToPay to zero, and returns before the source account is debited. The split recipient receives the full royaltyAmount while the sender pays nothing and the supply counter is not updated, allowing unbounded off-the-books inflation of the transferred KDA. A KDA owner must configure a TransferPercentage royalty with a 100 percent split, after which any holder's transfer of the asset triggers the mint; the sibling processFixedRoyaltiesTransfer path is not affected because it debits the source before distribution. This issue is fixed in version 1.7.19.

Affected products

VendorProductAffectedFixed
klever-io klever-go < 1.7.19 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
SLES for SAP 16.0 govulncheck-vulndb 0.0.20260902T191204-160000.1.1 SUSE-SU-2026:23712-1, SUSE-SU-2026:23692-1
SLES 16.0 govulncheck-vulndb 0.0.20260902T191204-160000.1.1 SUSE-SU-2026:23712-1, SUSE-SU-2026:23692-1
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260902T191204-160000.1.1 openSUSE-SU-2026:21812-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/klever-io/klever-go < 1.7.19-rc4 1.7.19-rc4 GHSA-v358-wf77-39xv
Go github.com/klever-io/klever-go all versions — GO-2026-6323

Advisories 3

References