{"cve":"CVE-2026-54754","nvd":{"published":"2026-08-28T20:18:17.533","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, 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 valid listing and then use AssetTrigger UpdateRoyalties to make the combined referral and royalty percentages exceed the bid. executeBuyMarket pays referral and royalty amounts unconditionally while computeMarketOwnerAmount silently skips a nonpositive seller remainder, allowing MarketBuy, BuyItNow, or auction Claim settlement to credit more KLV or sale currency than the buyer paid. This can create unbacked currency and corrupt token supply integrity. 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-191","CWE-367","CWE-682"],"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-p7gw-2pcp-5pf8","https://github.com/klever-io/klever-go/security/advisories/GHSA-p7gw-2pcp-5pf8"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-54754","score":0.00432,"percentile":0.37576,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-p7gw-2pcp-5pf8","url":"https://osv.dev/vulnerability/GHSA-p7gw-2pcp-5pf8","summary":"Klever: Marketplace settlement mints KLV when referral % + royalty % exceed the bid (negative seller share silently skipped)","modified":"2026-09-02T19:41:40.049364951Z","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-2026-6315","url":"https://osv.dev/vulnerability/GO-2026-6315","summary":"Klever: Marketplace settlement mints KLV when referral % + royalty % exceed the bid (negative seller share silently skipped) in github.com/klever-io/klever-go","modified":"2026-09-02T19:30:09.208568214Z","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."]}