~ / search / GHSA-j99g-7rqw-q9jg

GHSA-j99g-7rqw-q9jg

nimiq-blockchain: Peer-triggerable panic during history sync

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-34066

Packages

EcosystemPackageAffectedFixed in
crates.io nimiq-blockchain <= 0.2.0 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact `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. `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. ### Patches [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). ### Workarounds No known workarounds.

References

External links from the advisory. They lead to third-party sites.