CVE-2026-34067

LOW 3.1

nimiq-transaction vulnerable to panic via `HistoryTreeProof` length mismatch

CVSS Score

3.1

EPSS Score

0.0%

EPSS Percentile

0th

nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, `HistoryTreeProof::verify` panics on a malformed proof where `history.len() != positions.len()` due to `assert_eq!(history.len(), positions.len())`. The proof object is derived from untrusted p2p responses (`ResponseTransactionsProof.proof`) and is therefore attacker-controlled at the network boundary until validated. A malicious peer could trigger a crash by returning a crafted inclusion proof with a length mismatch. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available.

CWE	CWE-617
Vendor	nimiq
Product	nimiq-transaction
Published	Apr 22, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

nimiq / nimiq-transaction

< 1.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-264v-m8fm-76jm github.com: https://github.com/nimiq/core-rs-albatross/pull/3659 github.com: https://github.com/nimiq/core-rs-albatross/commit/6ff0800e8e031363e787c827d8d033e5694e4e6a github.com: https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0