{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-55764",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-17T14:34:51.880Z",
        "datePublished": "2026-08-28T22:08:27.196Z",
        "dateUpdated": "2026-08-28T22:08:27.196Z"
    },
    "containers": {
        "cna": {
            "title": "Klever-Go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupply",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-190",
                            "lang": "en",
                            "description": "CWE-190: Integer Overflow or Wraparound",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.7,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/klever-io/klever-go/security/advisories/GHSA-mrpp-v6pg-p54x",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/klever-io/klever-go/security/advisories/GHSA-mrpp-v6pg-p54x"
                },
                {
                    "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": "2026-08-28T22:08:27.196Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, Klever-Go allows a mint-role holder to bypass a finite per-nonce MaxSupply on the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation performed meta.Circulation += amount before evaluating whether Circulation exceeded MaxSupply, without checking for signed int64 overflow. A large positive raw Amount supplied through processSemiFungibleAddQuantity in core/kapp/kda/mint.go can wrap Circulation negative, causing the signed maximum-supply comparison to pass and crediting approximately MaxInt64 units while corrupting the on-chain counter. The fungible path is not affected because its MintedValue <= 0 guard detects the overflow. The correction uses the consensus activation flag FixMarketBuyOverflow. This issue is fixed in version 1.7.19."
                }
            ],
            "source": {
                "advisory": "GHSA-mrpp-v6pg-p54x",
                "discovery": "UNKNOWN"
            }
        }
    }
}