{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48486", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-21T15:33:08.291Z", "datePublished": "2026-09-03T15:22:35.486Z", "dateUpdated": "2026-09-03T15:22:35.486Z"}, "containers": {"cna": {"title": "Signum Node: Integer overflow in SMART_FEES fee distribution allows arbitrary miner reward inflation", "problemTypes": [{"descriptions": [{"cweId": "CWE-190", "lang": "en", "description": "CWE-190: Integer Overflow or Wraparound", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/signum-network/signum-node/security/advisories/GHSA-4vjp-2m22-r2q9", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/signum-network/signum-node/security/advisories/GHSA-4vjp-2m22-r2q9"}, {"name": "https://github.com/signum-network/signum-node/releases/tag/v3.9.9", "tags": ["x_refsource_MISC"], "url": "https://github.com/signum-network/signum-node/releases/tag/v3.9.9"}], "affected": [{"vendor": "signum-network", "product": "signum-node", "versions": [{"version": "< 3.9.9", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-03T15:22:35.486Z"}, "descriptions": [{"lang": "en", "value": "Signum Node is a HDD-mined cryptocurrency using an energy efficient and fair Proof-of-Commitment (PoC+) consensus algorithm. Prior to version 3.9.9, an integer overflow in BlockServiceImpl.applyBlock() allowed a miner to receive an arbitrarily inflated block reward by crafting a block with a negative totalFeeCashBackNqt value. The vulnerability was introduced when the SMART_FEES hardfork (block ~1,029,000) enabled fee cash-back and burn accounting without overflow protection. This issue has been patched in version 3.9.9."}], "source": {"advisory": "GHSA-4vjp-2m22-r2q9", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "signum-node", "vendor": "signum-network", "versions": [{"status": "affected", "version": "< 3.9.9"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Signum Node is a HDD-mined cryptocurrency using an energy efficient and fair Proof-of-Commitment (PoC+) consensus algorithm. Prior to version 3.9.9, an integer overflow in BlockServiceImpl.applyBlock() allowed a miner to receive an arbitrarily inflated block reward by crafting a block with a negative totalFeeCashBackNqt value. The vulnerability was introduced when the SMART_FEES hardfork (block ~1,029,000) enabled fee cash-back and burn accounting without overflow protection. This issue has been patched in version 3.9.9."}], "id": "CVE-2026-48486", "lastModified": "2026-09-03T16:17:24.330", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 4.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-03T16:17:24.330", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/signum-network/signum-node/releases/tag/v3.9.9"}, {"source": "security-advisories@github.com", "url": "https://github.com/signum-network/signum-node/security/advisories/GHSA-4vjp-2m22-r2q9"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.9.9)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "signum-node", "source": "cna", "vendor": "signum-network"}, "product": "signum-node", "vendor": "signum-network"}], "created": "2026-09-03T16:26:30.394514+00:00", "updated": "2026-09-03T16:30:05.479995+00:00", "vendors": ["signum-network", "signum-network$PRODUCT$signum-node"]}