{"cve":"CVE-2026-54755","nvd":{"published":"2026-08-28T20:18:17.670","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, 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 accumulators. Crafted values such as two 0x80000000 entries wrap the validation sum to zero and pass CheckValid100Params. Royalty payout paths in core/kapp/accounts/accounts.go, core/kapp/market/market.go, and core/kapp/ito/ito.go then credit each oversized split amount and silently discard a negative remainder, allowing ordinary asset transfers, marketplace purchases, or ITO purchases to create unbacked KLV or other assets. This issue is fixed in version 1.7.19.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H","score":9.6},"cwes":["CWE-190"],"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-cgc5-v3f2-8m2v"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-54755","score":0.0056,"percentile":0.4662,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-cgc5-v3f2-8m2v","url":"https://osv.dev/vulnerability/GHSA-cgc5-v3f2-8m2v","summary":"Klever: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)","modified":"2026-09-02T19:55:46.899060346Z","packages":[{"ecosystem":"Go","name":"github.com/klever-io/klever-go","purl":"pkg:golang/github.com/klever-io/klever-go","ranges":["<1.7.19"],"fixed":["1.7.19"]}]},{"id":"GO-2026-6310","url":"https://osv.dev/vulnerability/GO-2026-6310","summary":"Klever: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token) in github.com/klever-io/klever-go","modified":"2026-09-02T19:45:13.191273664Z","packages":[{"ecosystem":"Go","name":"github.com/klever-io/klever-go","purl":"pkg:golang/github.com/klever-io/klever-go","ranges":["<1.7.19"],"fixed":["1.7.19"]}]}],"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."]}