CVE-2026-34067
MEDIUM EPSS 23.6%
Published Apr 22, 20262mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
23.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-617
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| nimiq | nimiq_proof-of-stake | * | <1.3.0 |
References 4
- github.com https://github.com/nimiq/core-rs-albatross/commit/6ff0800e8e031363e787c827d8d033e5694e4e6a
- github.com https://github.com/nimiq/core-rs-albatross/pull/3659
- github.com https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0
- github.com https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-264v-m8fm-76jm
Remediation
- github.com https://github.com/nimiq/core-rs-albatross/commit/6ff0800e8e031363e787c827d8d033e5694e4e6a
- github.com https://github.com/nimiq/core-rs-albatross/pull/3659
- github.com https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-264v-m8fm-76jm