{"id":"GHSA-2fcv-qww3-9v6h","aliases":["GO-2025-4157"],"url":"https://o3.security/vulnerability/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.","published":"2025-11-24T23:32:11Z","modified":"2025-11-27T08:58:39.215032Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/babylonlabs-io/babylon/v4","fixedVersion":"4.1.0"}],"fix":{"url":"https://github.com/babylonlabs-io/babylon/pull/1873/commits/86f38abd2dca5a656195a9954bb569a08d662e2b","label":"babylonlabs-io/babylon#1873"},"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2025-11-27T08:58:39.215032Z"}}