{"id":"GHSA-2fcv-qww3-9v6h","summary":"Babylon's malformed vote extensions are not rejected","details":"### Summary\n\nAdversarial validators can send large vote extensions by using non-existing protobuf tags. This will result in the rejection of the subsequent block proposal. Eventually, all block proposals will be rejected by all validators.\n\n### Impact\n\nA small group of adversarial validators can cause a chain halt.","aliases":["GO-2025-4157"],"modified":"2025-11-27T08:58:39.215032Z","published":"2025-11-24T23:32:11Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2025-11-24T23:32:11Z","nvd_published_at":null,"cwe_ids":["CWE-770"]},"references":[{"type":"WEB","url":"https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-2fcv-qww3-9v6h"},{"type":"WEB","url":"https://github.com/babylonlabs-io/babylon/pull/1873/commits/86f38abd2dca5a656195a9954bb569a08d662e2b"},{"type":"PACKAGE","url":"https://github.com/babylonlabs-io/babylon"},{"type":"WEB","url":"https://github.com/babylonlabs-io/babylon/releases/tag/v4.1.0"}],"affected":[{"package":{"name":"github.com/babylonlabs-io/babylon/v4","ecosystem":"Go","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v4"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.1.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/11/GHSA-2fcv-qww3-9v6h/GHSA-2fcv-qww3-9v6h.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"}]}