{"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":"2026-08-27T15:22:58.317Z"},"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"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T15:22:06.489660Z","id":"CVE-2026-46369","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2026-08-27T15:22:58.317Z"}}]}}