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CVE-2026-46542— nimiq-keys: Denial of service in Ed25519 multisig delinearization via invalid curve points

CVSS 4.3 · Medium EPSS 0.23% · P14

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProductVersion RangeStatus
nimiqcore-rs-albatross< 1.4.0affected
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I. Basic Information for CVE-2026-46542

Vulnerability Information
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Vulnerability Title
nimiq-keys: Denial of service in Ed25519 multisig delinearization via invalid curve points
Source: NVD (National Vulnerability Database)
Vulnerability Description
Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, a denial-of-service vulnerability exists in the Ed25519 multisig delinearization code path. Ed25519PublicKey::delinearize() in keys/src/multisig/mod.rs called .unwrap() on curve point decompression, which panics when a public key is constructed from 32 bytes that do not represent a valid point on the Ed25519 curve. Ed25519PublicKey construction only validates byte length, not curve membership, so invalid keys can reach the delinearization path and crash the hosting process. This issue has been patched in version 1.4.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
Nimiq 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nimiq是Nimiq开源的一个Albatross协议的Rust实现。 Nimiq 1.4.0之前版本存在安全漏洞，该漏洞源于Ed25519PublicKey::delinearize()中对曲线点解压缩调用.unwrap()，当公钥由无效曲线点构造时导致进程崩溃。
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

VendorProductAffected VersionsCPESubscribe
nimiqcore-rs-albatross < 1.4.0 -

II. Public POCs for CVE-2026-46542

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III. Intelligence Information for CVE-2026-46542

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Patches & Fixes for CVE-2026-46542 (1)

Vendor Advisories for CVE-2026-46542 (1)

Vendor Pages for CVE-2026-46542 (1)

Same Patch Batch · nimiq · 2026-06-09 · 7 CVEs total

CVE-2026-465457.5 HIGHnimiq-primitives: Panic DoS in trie chunk processing via ROOT-keyed item
CVE-2026-465417.5 HIGHNimiq network-libp2p: DHT query poisoning via first-record verification failure
CVE-2026-465406.5 MEDIUMNimiq light-blockchain: Light blockchain rebranch issue
CVE-2026-465395.9 MEDIUMnimiq-primitives: BlockInclusionProof interlink issue when hops are empty
CVE-2026-465435.3 MEDIUMnimiq-blockchain: Genesis batch set request
CVE-2026-445055.3 MEDIUMNimiq network-libp2p: Untrusted peer can wedge DHT

IV. Related Vulnerabilities

Same product: core-rs-albatross
Same vendor: nimiq
Same weakness: CWE-617

V. Comments for CVE-2026-46542

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