CVEvulnerability
CVE-2026-34069
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-14
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-617
Description
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 configurations
• nimiq nimiq proof-of-stake (< 1.3.0)
Related
Weakness · CWE (1)
- CWE-617 Reachable Assertion weakness
References
- 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