CVE-2026-46545: CWE-248: Uncaught Exception in nimiq core-rs-albatross
A denial-of-service vulnerability exists in the Nimiq core-rs-albatross Rust implementation prior to version 1. 5. 0. The issue occurs in the MerkleRadixTrie::put_chunk function, where a remote, unauthenticated state-sync peer can cause a node performing state synchronization to crash. This affects nodes that are freshly joining or recovering. The vulnerability has been fixed in version 1. 5. 0.
AI Analysis
Technical Summary
CVE-2026-46545 describes a denial-of-service vulnerability in the Nimiq core-rs-albatross implementation of the Nimiq Proof-of-Stake protocol using the Albatross consensus algorithm. Specifically, versions prior to 1.5.0 contain an uncaught exception in the MerkleRadixTrie::put_chunk function. This flaw allows a remote, unauthenticated attacker acting as a state-sync peer to crash nodes that are synchronizing state, impacting freshly joining or recovering nodes. The vulnerability is addressed by a patch in version 1.5.0.
Potential Impact
The vulnerability allows remote unauthenticated attackers to cause a denial of service by crashing nodes during state synchronization. This disrupts the availability of nodes that are joining or recovering, potentially impacting network stability or node participation. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Upgrade to Nimiq core-rs-albatross version 1.5.0 or later, where this vulnerability has been patched. No other mitigation or temporary workaround is indicated.
CVE-2026-46545: CWE-248: Uncaught Exception in nimiq core-rs-albatross
Description
A denial-of-service vulnerability exists in the Nimiq core-rs-albatross Rust implementation prior to version 1. 5. 0. The issue occurs in the MerkleRadixTrie::put_chunk function, where a remote, unauthenticated state-sync peer can cause a node performing state synchronization to crash. This affects nodes that are freshly joining or recovering. The vulnerability has been fixed in version 1. 5. 0.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-46545 describes a denial-of-service vulnerability in the Nimiq core-rs-albatross implementation of the Nimiq Proof-of-Stake protocol using the Albatross consensus algorithm. Specifically, versions prior to 1.5.0 contain an uncaught exception in the MerkleRadixTrie::put_chunk function. This flaw allows a remote, unauthenticated attacker acting as a state-sync peer to crash nodes that are synchronizing state, impacting freshly joining or recovering nodes. The vulnerability is addressed by a patch in version 1.5.0.
Potential Impact
The vulnerability allows remote unauthenticated attackers to cause a denial of service by crashing nodes during state synchronization. This disrupts the availability of nodes that are joining or recovering, potentially impacting network stability or node participation. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Upgrade to Nimiq core-rs-albatross version 1.5.0 or later, where this vulnerability has been patched. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-14T20:42:31.368Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a28a80c8dd33fbd8595f58b
Added to database: 6/9/2026, 11:55:56 PM
Last enriched: 6/10/2026, 12:10:36 AM
Last updated: 6/10/2026, 1:38:39 AM
Views: 6
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