CVE-2026-34069

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/nimiq/core-rs-albatross/commit/ae6c1e92342e72f80fd12accbe66ee80dd6802ac	Patch
https://github.com/nimiq/core-rs-albatross/pull/3660	Issue Tracking Patch
https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0	Release Notes
https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-48m6-486p-9j8p	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:rust:*:*

History

No history.

Information

Published : 2026-04-14 00:16

Updated : 2026-06-17 10:38

NVD link : CVE-2026-34069

Mitre link : CVE-2026-34069

CVE.ORG link : CVE-2026-34069

JSON object : View

Products Affected

nimiq

nimiq_proof-of-stake

CWE

CWE-617

Reachable Assertion

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