🛡️ CVE-2026-34069
🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-617 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity Medium
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE CWE-617
Public Exploit ✅ No
Source NVD
Published 2026-04-13
Updated 2026-06-02
Modified 2026-04-15

Affected Packages

Software From version Fixed in
nimiq-consensus — —
nimiq-proof-of-stake — 1.3.0

Exploit Protection

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