{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46369", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T19:53:47.920Z", "datePublished": "2026-08-26T19:32:46.025Z", "dateUpdated": "2026-08-26T19:32:46.025Z"}, "containers": {"cna": {"title": "Nimiq: Validity store off by one error", "problemTypes": [{"descriptions": [{"cweId": "CWE-193", "lang": "en", "description": "CWE-193: Off-by-one Error", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-294", "lang": "en", "description": "CWE-294: Authentication Bypass by Capture-replay", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3763-qp59-59vf", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3763-qp59-59vf"}, {"name": "https://github.com/nimiq/core-rs-albatross/pull/3772", "tags": ["x_refsource_MISC"], "url": "https://github.com/nimiq/core-rs-albatross/pull/3772"}, {"name": "https://github.com/nimiq/core-rs-albatross/commit/a530b2434ebca6e3716f07c73079786fcc6f2e41", "tags": ["x_refsource_MISC"], "url": "https://github.com/nimiq/core-rs-albatross/commit/a530b2434ebca6e3716f07c73079786fcc6f2e41"}], "affected": [{"vendor": "nimiq", "product": "core-rs-albatross", "versions": [{"version": "< 1.5.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-26T19:32:46.025Z"}, "descriptions": [{"lang": "en", "value": "Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Through 1.5.0, the validity store uses a strict lower-bound comparison that expires a stored transaction too early relative to Transaction::is_valid_at, allowing a remote attacker to replay the same signed transaction during a blocks_per_batch minus one block window and cause the sender and recipient balances to be updated twice. This issue is fixed in version 1.5.1."}], "source": {"advisory": "GHSA-3763-qp59-59vf", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "core-rs-albatross", "vendor": "nimiq", "versions": [{"status": "affected", "version": "< 1.5.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Through 1.5.0, the validity store uses a strict lower-bound comparison that expires a stored transaction too early relative to Transaction::is_valid_at, allowing a remote attacker to replay the same signed transaction during a blocks_per_batch minus one block window and cause the sender and recipient balances to be updated twice. This issue is fixed in version 1.5.1."}], "id": "CVE-2026-46369", "lastModified": "2026-08-26T20:17:23.163", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-26T20:17:23.163", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nimiq/core-rs-albatross/commit/a530b2434ebca6e3716f07c73079786fcc6f2e41"}, {"source": "security-advisories@github.com", "url": "https://github.com/nimiq/core-rs-albatross/pull/3772"}, {"source": "security-advisories@github.com", "url": "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3763-qp59-59vf"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-193"}, {"lang": "en", "value": "CWE-294"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.5.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "core-rs-albatross", "source": "cna", "vendor": "nimiq"}, "product": "core-rs-albatross", "vendor": "nimiq"}], "created": "2026-08-26T21:30:11.911493+00:00", "updated": "2026-08-26T21:30:12.351573+00:00", "vendors": ["nimiq", "nimiq$PRODUCT$core-rs-albatross"]}