CVE-2026-34069— nimiq-consensus panics via RequestMacroChain micro-block locator
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I. Basic Information for CVE-2026-34069
Vulnerability Information
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Vulnerability Title
nimiq-consensus panics via RequestMacroChain micro-block locator
Source: NVD (National Vulnerability Database)
Vulnerability Description
nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. In versions 1.2.2 and below, an unauthenticated p2p peer can cause the RequestMacroChain message handler task to panic. Sending a RequestMacroChain message where the first locator hash on the victim’s main chain is a micro block hash (not a macro block hash) causes said panic. The RequestMacroChain::handle handler selects the locator based only on "is on main chain", then calls get_macro_blocks() and panics via .unwrap() when the selected hash is not a macro block (BlockchainError::BlockIsNotMacro). This issue has been fixed in version 1.3.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
可达断言
Source: NVD (National Vulnerability Database)
Vulnerability Title
core-rs-albatross 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
core-rs-albatross是Nimiq开源的一个Albatross协议的Rust实现。 core-rs-albatross 1.2.2及之前版本存在安全漏洞，该漏洞源于未经身份验证的p2p对等方可导致RequestMacroChain消息处理程序任务崩溃，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| nimiq | core-rs-albatross | < 1.3.0 | - |
II. Public POCs for CVE-2026-34069
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: core-rs-albatross
- CVE-2026-32605
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nimiq-blockchain is missing a wall-clock upper bound on bloc - CVE-2026-35468
nimiq/core-rs-albatross: Panic in history index request hand - CVE-2026-33184
nimiq/core-rs-albatross: Discovery handshake limit could und - CVE-2026-34061
nimiq/core-rs-albatross: Macro block proposal interlink bug
Same vendor: nimiq
- CVE-2026-34068
nimiq-transaction: UpdateValidator transactions allows votin - CVE-2026-34067
nimiq-transaction vulnerable to panic via `HistoryTreeProof` - CVE-2026-34066
nimiq-blockchain: Peer-triggerable panic during history sync - CVE-2026-34065
nimiq-primitives: Node crash due to missing interlink valida - CVE-2026-34064
nimiq-account: Vesting insufficient funds error can panic
Same weakness: CWE-617
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nimiq-transaction vulnerable to panic via `HistoryTreeProof`
V. Comments for CVE-2026-34069
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