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CVE-2026-46541— Nimiq network-libp2p: DHT query poisoning via first-record verification failure

Quick assessment

Affected
nimiq core-rs-albatross
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Nimiq是Nimiq开源的一个Albatross协议的Rust实现。 Nimiq 1.4.0之前版本存在代码问题漏洞，该漏洞源于handle_dht_get()中DhtResults累加器仅在第一个DHT记录通过验证时初始化，导致恶意节点发送无效记录后所有后续有效记录被丢弃。

CVSS 7.5 · High EPSS 0.61% · P48

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
nimiq core-rs-albatross < 1.4.0 affected
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I. Basic Information for CVE-2026-46541

Vulnerability Information
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Vulnerability Title
Nimiq network-libp2p: DHT query poisoning via first-record verification failure
Source: CVE Program / CVE List V5
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, iIn handle_dht_get(), the DhtResults accumulator is only initialized when the first DHT record passes verification. If the first record fails (from a malicious DHT node), DhtResults is never created, and all subsequent valid records are discarded with "DHT inconsistent state" errors. This issue has been patched in version 1.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对因果或异常条件的不恰当检查
Source: CVE Program / CVE List V5
Vulnerability Title
Nimiq 代码问题漏洞
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之前版本存在代码问题漏洞，该漏洞源于handle_dht_get()中DhtResults累加器仅在第一个DHT记录通过验证时初始化，导致恶意节点发送无效记录后所有后续有效记录被丢弃。
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 < 1.4.0 -

II. Public POCs for CVE-2026-46541

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 11037 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-46541

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Patches & Fixes for CVE-2026-46541 (1)

Vendor Advisories for CVE-2026-46541 (1)

Vendor Pages for CVE-2026-46541 (1)

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

CVE-2026-46545 7.5 HIGH nimiq-primitives: Panic DoS in trie chunk processing via ROOT-keyed item
CVE-2026-46540 6.5 MEDIUM Nimiq light-blockchain: Light blockchain rebranch issue
CVE-2026-46539 5.9 MEDIUM nimiq-primitives: BlockInclusionProof interlink issue when hops are empty
CVE-2026-46543 5.3 MEDIUM nimiq-blockchain: Genesis batch set request
CVE-2026-44505 5.3 MEDIUM Nimiq network-libp2p: Untrusted peer can wedge DHT
CVE-2026-46542 4.3 MEDIUM nimiq-keys: Denial of service in Ed25519 multisig delinearization via invalid curve points

IV. Related Vulnerabilities

Same product: core-rs-albatross
Same vendor: nimiq
Same weakness: CWE-754

V. Comments for CVE-2026-46541

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