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CVE-2026-55763: CWE-841: Improper Enforcement of Behavioral Workflow in klever-io klever-go

0
High
VulnerabilityCVE-2026-55763cvecve-2026-55763cwe-841
Published: 08/28/2026 (08/28/2026, 20:26:43 UTC)
Source: CVE Database V5
Vendor/Project: klever-io
Product: klever-go

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.

CVSS v4.0

Score 8.7high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
High
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-06-17T14:34:51.880Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a9206c6acd9273b4963cecf

Added to database: 08/28/2026, 22:08:06 UTC

Last updated: 08/29/2026, 02:52:17 UTC

Views: 7

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