{"cve":{"cve_id":"CVE-2022-29219","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":0.01228,"epss_percentile":0.64973,"epss_as_of":"2026-06-23","description":"Lodestar is a TypeScript implementation of the Ethereum Consensus specification. Prior to version 0.36.0, there is a possible consensus split given maliciously-crafted `AttesterSlashing` or `ProposerSlashing` being included on-chain. Because the developers represent `uint64` values as native javascript `number`s, there is an issue when those variables with large (greater than 2^53) `uint64` values are included on chain. In those cases, Lodestar may view valid_`AttesterSlashing` or `ProposerSlashing` as invalid, due to rounding errors in large `number` values. This causes a consensus split, where Lodestar nodes are forked away from the main network. Similarly, Lodestar may consider invalid `ProposerSlashing` as valid, thus including in proposed blocks that will be considered invalid by the network. Version 0.36.0 contains a fix for this issue. As a workaround, use `BigInt` to represent `Slot` and `Epoch` values in `AttesterSlashing` and `ProposerSlashing` objects. `BigInt` is too slow to be used in all `Slot` and `Epoch` cases, so one may carefully use `BigInt` just where necessary for consensus.","published_at":"2022-05-24T14:15:14Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cvss_v3_severity":"HIGH","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-190"],"nvd_references":["https://github.com/ChainSafe/lodestar/security/advisories/GHSA-cvj7-5f3c-9vg9","https://github.com/ChainSafe/lodestar/pull/3977","https://github.com/ChainSafe/lodestar/releases/tag/v0.36.0"],"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":"2026-06-28T23:17:29.865157Z"},"effective_severity":"HIGH","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":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"chainsafe","vendor_name":"ChainSafe","product_slug":"lodestar","product_name":"lodestar","version_start":"< 0.36.0","version_start_inclusive":true,"version_end":"< 0.36.0","version_end_inclusive":true,"cpe23_uri":"cve5:chainsafe:lodestar:< 0.36.0:< 0.36.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/ChainSafe/lodestar/security/advisories/GHSA-cvj7-5f3c-9vg9","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/ChainSafe/lodestar/pull/3977","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/ChainSafe/lodestar/releases/tag/v0.36.0","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2022-05-24T14:15:14Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:22:08.449389Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:22:08.449389Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:22:08.449389Z","label":"CVSS score revised","source":"cvelistv5"}]}