CVE-2026-34069
nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm.
Impact
nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. In versions 1.2.2 and below, an unauthenticated p2p peer can cause the RequestMacroChain message handler task to panic. Sending a RequestMacroChain message where the first locator hash on the victim’s main chain is a micro block hash (not a macro block hash) causes said panic. The RequestMacroChain::handle handler selects the locator based only on "is on main chain", then calls get_macro_blocks() and panics via .unwrap() when the selected hash is not a macro block (BlockchainError::BlockIsNotMacro). This issue has been fixed in version 1.3.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | nimiq-consensus | <= 1.2.2 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nimiq | Nimiq Proof-Of-Stake | before 1.3.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/nimiq/core-rs-albatross/commit/ae6c1e92342e72f80fd12accbe66ee80dd6802ac
- https://github.com/nimiq/core-rs-albatross/pull/3660
- https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0
- https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-48m6-486p-9j8p
- https://github.com/advisories/GHSA-48m6-486p-9j8p
- https://nvd.nist.gov/vuln/detail/CVE-2026-34069