{"cve":{"cve_id":"CVE-2026-46543","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00291,"epss_percentile":0.20621,"epss_as_of":"2026-06-23","description":"Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.5.0, a remote peer can crash any full node by sending a RequestBatchSet message containing the genesis block's hash. The handler calls get_epoch_chunks which iterates backwards through macro blocks using Policy::macro_block_before. When it reaches the genesis block number, macro_block_before panics with \"No macro blocks before genesis block\". This issue has been patched in version 1.5.0.","published_at":"2026-06-09T23:47:32.019000Z","last_modified_at":null,"cvss_v3_score":5.3,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-617"],"nvd_references":["https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-vghx-352f-93jm","https://github.com/nimiq/core-rs-albatross/pull/3745","https://github.com/nimiq/core-rs-albatross/releases/tag/v1.5.0"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:30:38.004927Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"L","value_label":"Low"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"nimiq","vendor_name":"nimiq","product_slug":"core-rs-albatross","product_name":"core-rs-albatross","version_start":"< 1.5.0","version_start_inclusive":true,"version_end":"< 1.5.0","version_end_inclusive":true,"cpe23_uri":"cve5:nimiq:core-rs-albatross:< 1.5.0:< 1.5.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-vghx-352f-93jm","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/nimiq/core-rs-albatross/pull/3745","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/nimiq/core-rs-albatross/releases/tag/v1.5.0","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-06-09T23:47:32.019000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:49.174395Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:49.174395Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:49.174395Z","label":"CVSS score revised","source":"cvelistv5"}]}