{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-54755", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-15T23:12:41.965Z", "datePublished": "2026-08-28T16:23:44.276Z", "dateUpdated": "2026-08-31T18:54:33.603Z" }, "containers": { "cna": { "title": "Klever-Go: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-190", "lang": "en", "description": "CWE-190: Integer Overflow or Wraparound", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/klever-io/klever-go/security/advisories/GHSA-cgc5-v3f2-8m2v", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/klever-io/klever-go/security/advisories/GHSA-cgc5-v3f2-8m2v" }, { "name": "https://github.com/klever-io/klever-go/commit/8bcc600b0ac88070740c63c7ce1c8a968dd85251", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/klever-io/klever-go/commit/8bcc600b0ac88070740c63c7ce1c8a968dd85251" }, { "name": "https://github.com/klever-io/klever-go/releases/tag/v1.7.19", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/klever-io/klever-go/releases/tag/v1.7.19" } ], "affected": [ { "vendor": "klever-io", "product": "klever-go", "versions": [ { "version": "< 1.7.19", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-28T16:23:44.276Z" }, "descriptions": [ { "lang": "en", "value": "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." } ], "source": { "advisory": "GHSA-cgc5-v3f2-8m2v", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-31T15:21:26.342020Z", "id": "CVE-2026-54755", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-31T18:54:33.603Z" } } ] } }