{"cve":"CVE-2026-55763","nvd":{"published":"2026-08-28T22:16:51.720","modified":"2026-09-09T21:09:13.080","status":"Deferred","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":{"vector":"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","score":8.7},"cvss_v3":null,"cwes":["CWE-841"],"references":["https://github.com/klever-io/klever-go/commit/8bcc600b0ac88070740c63c7ce1c8a968dd85251","https://github.com/klever-io/klever-go/releases/tag/v1.7.19","https://github.com/klever-io/klever-go/security/advisories/GHSA-v358-wf77-39xv","https://github.com/klever-io/klever-go/security/advisories/GHSA-v358-wf77-39xv"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-55763","score":0.00507,"percentile":0.43258,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-v358-wf77-39xv","url":"https://osv.dev/vulnerability/GHSA-v358-wf77-39xv","summary":"klever-go: Percentage-transfer royalty skips the source debit at exactly-100% splits","modified":"2026-09-02T19:41:36.642596142Z","packages":[{"ecosystem":"Go","name":"github.com/klever-io/klever-go","purl":"pkg:golang/github.com/klever-io/klever-go","ranges":["<1.7.19-rc4"],"fixed":["1.7.19-rc4"]}]},{"id":"GO-2026-6323","url":"https://osv.dev/vulnerability/GO-2026-6323","summary":"klever-go: Percentage-transfer royalty skips the source debit at exactly-100% splits in github.com/klever-io/klever-go","modified":"2026-09-02T19:30:09.208606541Z","packages":[{"ecosystem":"Go","name":"github.com/klever-io/klever-go","purl":"pkg:golang/github.com/klever-io/klever-go","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}