{"id":"GHSA-j99g-7rqw-q9jg","revision":"3c323d25f40c4547b4061ae2e42d75a3","records":[{"revision":"3c323d25f40c4547b4061ae2e42d75a3","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-j99g-7rqw-q9jg","aliases":["CVE-2026-34066"],"title":"nimiq-blockchain: Peer-triggerable panic during history sync","description":"### Impact\n`HistoryStore::put_historic_txns` uses an `assert!` to enforce invariants about `HistoricTransaction.block_number` (must be within the macro block being pushed and within the same epoch). During history sync, a peer can influence the `history: &[HistoricTransaction]` input passed into `Blockchain::push_history_sync`, and a malformed history list can violate these invariants and trigger a panic.\n\n`extend_history_sync` calls `this.history_store.add_to_history(..)` before comparing the computed history root against the macro block header (`block.history_root()`), so the panic can happen before later rejection checks run.\n\n### Patches\n[The patch for this vulnerability](https://github.com/nimiq/core-rs-albatross/commit/6f5511309c199d84b012fe6b9aba7e5582892c50) is included as part of [v1.3.0](https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0).\n\n### Workarounds\nNo known workarounds.","state":0,"publishedAt":"2026-04-22T19:23:55+00:00","modifiedAt":"2026-05-05T16:10:37.181861+00:00","affected":[{"ecosystem":"crates.io","name":"nimiq-blockchain","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"last_affected","version":"0.2.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-j99g-7rqw-q9jg","https://nvd.nist.gov/vuln/detail/CVE-2026-34066","https://github.com/nimiq/core-rs-albatross/pull/3656","https://github.com/nimiq/core-rs-albatross/commit/6f5511309c199d84b012fe6b9aba7e5582892c50","https://github.com/nimiq/core-rs-albatross","https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0"],"sourceUrl":"https://github.com/advisories/GHSA-j99g-7rqw-q9jg","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-j99g-7rqw-q9jg","identifiers":["GHSA-j99g-7rqw-q9jg","CVE-2026-34066"]},"retained":false,"historicalAffected":[]}],"coverage":[]}