CVE-2026-54754

Katalog CVE

CVSS 9.6 · Critical EPSS 0,43%

Kerentanan Integer Underflow (Wrap or Wraparound). Skor CVSS 3.1 9.6 (Critical) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

28 Agustus 2026

Terakhir diubah

9 September 2026

Status NVD

Deferred

CVSS 3.1

9.6 (Critical), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-191: Integer Underflow (Wrap or Wraparound)
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-682: Incorrect Calculation

EPSS (30 hari)

0,43% peluang dieksploitasi; lebih tinggi dari 35,7% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• 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