Medium severity5.3GHSA Advisory· Published Jun 10, 2026· Updated Jun 10, 2026
CVE-2026-46543
CVE-2026-46543
Description
Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.5.0, a remote peer can crash any full node by sending a RequestBatchSet message containing the genesis block's hash. The handler calls get_epoch_chunks which iterates backwards through macro blocks using Policy::macro_block_before. When it reaches the genesis block number, macro_block_before panics with "No macro blocks before genesis block". This issue has been patched in version 1.5.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
nimiq-blockchaincrates.io | < 1.5.0 | 1.5.0 |
Affected products
1- Range: < 1.5.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-vghx-352f-93jmghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-46543ghsaADVISORY
- github.com/nimiq/core-rs-albatross/commit/8e8b0abdb1b66f5e9b25b3833879f05c173a5596ghsaWEB
- github.com/nimiq/core-rs-albatross/pull/3745nvdWEB
- github.com/nimiq/core-rs-albatross/releases/tag/v1.5.0nvdWEB
- github.com/nimiq/core-rs-albatross/security/advisories/GHSA-vghx-352f-93jmnvdWEB
News mentions
1- Nimiq Core Rs Albatross: Seven Denial-of-Service Vulnerabilities DisclosedVypr Intelligence · Jun 10, 2026