CVE-2026-44505 Details
Description
Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. network-libp2p handles kad get-record query progress in handle_dht_get (network-libp2p/src/swarm.rs). Prior to version 1.4.0, when a peer returns a FoundRecord, the code verifies the record via dht_verifier.verify(&record.record). On verifier error, handle_dht_get logs and returns early without completing the oneshot used by Network::dht_get, and without cleaning up per-query bookkeeping. Later query progress can hit the "DHT inconsistent state" path and also return without cleanup. Because Network::dht_get awaits the oneshot without a timeout, the caller future can hang indefinitely. This issue has been patched in version 1.4.0.
A vulnerability exists in the Nimiq network-libp2p component, specifically in versions through 1.3.0, related to the handling of DHT (Distributed Hash Table) get-record queries. When a peer returns a FoundRecord, the system verifies the record using a DHT verifier. If the verification fails, the query handler logs the error and exits prematurely, leaving the query uncompleted and failing to clean up the associated bookkeeping. This can lead to an inconsistent DHT state, causing future query progress to also exit without proper cleanup. Since the DHT get operation waits for the query to complete without a timeout, this can result in the operation hanging indefinitely.
Users can upgrade to Nimiq version 1.4.0 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 10, 2026CISA-ADP
Assessed Jun 10, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/nimiq/core-rs-albatross/pull/3716 | [email protected] | Source CodeVendor |
| https://github.com/nimiq/core-rs-albatross/releases/tag/v1.4.0 | [email protected] | Release NotesVendor |
| https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-g39c-jcgg-qwvr | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-755 | Improper Handling of Exceptional Conditions | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Nimiq | <= v1.3.0 (semver) |
CPE
Remediation
| |
| Nimiq core-rs-albatross | <= v1.3.0 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 10, 2026 | New CVE Received | [email protected] |