CVE-2026-54541
Nimiq: Panic in TrieProof::verify via child_index unwrap on equal-length keys
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to 1.6.0, a malicious state-sync peer can crash a syncing node by sending a crafted TrieChunk proof containing two TrieProofNode values with identical keys. TrieProof::verify calls TrieProofNode::child_index in primitives/src/trie/trie_proof_node.rs, where is_prefix_of accepts equal keys and KeyNibbles::get is called at the key length, returns None, and is unconditionally unwrapped. Untrusted ResponseChunk data reaches commit_chunks, put_chunk, and proof.verify before cryptographic proof validation, so the attacker does not need a valid proof. Exploitation requires the attacker to be selected as the victim's sync peer during state sync, and the resulting panic is transient because the node restarts and resynchronizes. This issue is fixed in version 1.6.0.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Low3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Deferred | 3.1 | Low3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
- EPSS (exploitation in 30 days)
- 0.44% · top 61% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.7.
Weakness
Affected products
- affected < 1.6.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- crates.ionimiq-primitivesGHSA-46wq-28cx-mhw4 (opens in a new tab)
References (4)
- https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-46wq-28cx-mhw4 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/nimiq/core-rs-albatross/pull/3789 (opens in a new tab)x_refsource_MISC
- https://github.com/nimiq/core-rs-albatross/commit/41d35acee1b5cf3bc34ec3ddc1abbc03604e791e (opens in a new tab)x_refsource_MISC
- https://github.com/nimiq/core-rs-albatross/releases/tag/v1.6.0 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-46wq-28cx-mhw4 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-54541)Record last updated .