{
    "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"
            }
        }
    }
}