Vulnerability 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 Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/klever-io/klever-go/commit/8bcc600b0ac88070740c63c7ce1c8a968d
- 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
FAQ
What is CVE-2026-54754?
CVE-2026-54754 is a vulnerability with a CVSS score of 9.6 (CRITICAL). 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 wh...
How severe is CVE-2026-54754?
CVE-2026-54754 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-54754?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.