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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/nimiq/core-rs-albatross/commit/ae6c1e92342e72f80fd12accbe66ee80dd6802ac Patch
- https://github.com/nimiq/core-rs-albatross/pull/3660 Issue Tracking, Patch
- https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-48m6-486p-9j8p Patch, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.3 · nimiqNVD modified 2026-10-26 21:10
Affected (CPE criteria) 1
cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:rust:*:*
References 4
- https://github.com/nimiq/core-rs-albatross/commit/ae6c1e92342e72f80fd12accbe66ee80dd6802ac Patch
- https://github.com/nimiq/core-rs-albatross/pull/3660 Issue Tracking, Patch
- https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0 Release Notes
- https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-48m6-486p-9j8p Patch, Vendor Advisory