{"id":"GHSA-rj53-j6jw-7f7g","summary":"Babylon vulnerable to chain halt when a message modifies the validator set at the epoch boundary","details":"### Summary\n\nSending a message that modifies the validator set at the epoch boundary halts the chain.\n\n### Impact\n\nDenial of Service - Comos-sdk prevents modifying the validator set from two different modules - https://github.com/cosmos/cosmos-sdk/blob/release/v0.50.x/types/module/module.go#L811. Such an operation leads to panic and chain halt.\n\n### Detailed Post mortem\n\nhttps://boiling-lake-106.notion.site/2025-06-18-Genesis-mainnet-chain-halt-post-mortem-229f60cc1b5f80b7adf5e3ea0541ea87","aliases":["GO-2025-3801"],"modified":"2025-07-28T20:42:21.065772Z","published":"2025-07-08T19:09:11Z","database_specific":{"cwe_ids":["CWE-754"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2025-07-08T19:09:11Z","nvd_published_at":null},"references":[{"type":"WEB","url":"https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-rj53-j6jw-7f7g"},{"type":"WEB","url":"https://github.com/babylonlabs-io/babylon/pull/1244/files"},{"type":"WEB","url":"https://boiling-lake-106.notion.site/2025-06-18-Babylon-Genesis-Chain-Halt-Post-Mortem-229f60cc1b5f80b7adf5e3ea0541ea87"},{"type":"PACKAGE","url":"https://github.com/babylonlabs-io/babylon"},{"type":"WEB","url":"https://github.com/babylonlabs-io/babylon/releases/tag/v2.1.0"}],"affected":[{"package":{"name":"github.com/babylonlabs-io/babylon/v2","ecosystem":"Go","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.1.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-rj53-j6jw-7f7g/GHSA-rj53-j6jw-7f7g.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"}]}