{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-46541: Nimiq network-libp2p: DHT query poisoning via first-record verification failure","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-46541","status":"final","version":"1","initial_release_date":"2026-06-09T23:45:38.719Z","current_release_date":"2026-06-10T18:10:17.632Z","revision_history":[{"date":"2026-06-09T23:45:38.719Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"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.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-46541 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-46541"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-46541"},{"category":"external","summary":"https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-ccqv-2c9q-mqw5","url":"https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-ccqv-2c9q-mqw5"},{"category":"external","summary":"https://github.com/nimiq/core-rs-albatross/pull/3707","url":"https://github.com/nimiq/core-rs-albatross/pull/3707"},{"category":"external","summary":"https://github.com/nimiq/core-rs-albatross/releases/tag/v1.4.0","url":"https://github.com/nimiq/core-rs-albatross/releases/tag/v1.4.0"}]},"product_tree":{"branches":[{"category":"vendor","name":"nimiq","branches":[{"category":"product_name","name":"core-rs-albatross","branches":[{"category":"product_version","name":"< 1.4.0","product":{"name":"nimiq core-rs-albatross < 1.4.0","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:nimiq:core-rs-albatross:\\<_1.4.0:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-46541","title":"Nimiq network-libp2p: DHT query poisoning via first-record verification failure","notes":[{"category":"description","text":"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.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}