{"id":"GHSA-vghx-352f-93jm","summary":"nimiq-blockchain: Genesis batch set request","details":"### Impact\nA 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\".\n\n### Patches\n[The patch for this vulnerability](https://github.com/nimiq/core-rs-albatross/pull/3745) is formally released as part of [v1.5.0](https://github.com/nimiq/core-rs-albatross/releases/tag/v1.5.0).\n\n### Workarounds\nNo Workaround, although requesting the genesis batch set is not used during normal operation.\n\n### Resources\nSee [PR](https://github.com/nimiq/core-rs-albatross/pull/3745).","aliases":["CVE-2026-46543"],"modified":"2026-06-10T13:45:16.343930493Z","published":"2026-05-21T19:46:15Z","database_specific":{"nvd_published_at":"2026-06-10T00:16:54Z","cwe_ids":["CWE-617"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-05-21T19:46:15Z"},"references":[{"type":"WEB","url":"https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-vghx-352f-93jm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46543"},{"type":"WEB","url":"https://github.com/nimiq/core-rs-albatross/pull/3745"},{"type":"WEB","url":"https://github.com/nimiq/core-rs-albatross/commit/8e8b0abdb1b66f5e9b25b3833879f05c173a5596"},{"type":"PACKAGE","url":"https://github.com/nimiq/core-rs-albatross"},{"type":"WEB","url":"https://github.com/nimiq/core-rs-albatross/releases/tag/v1.5.0"}],"affected":[{"package":{"name":"nimiq-blockchain","ecosystem":"crates.io","purl":"pkg:cargo/nimiq-blockchain"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.5.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-vghx-352f-93jm/GHSA-vghx-352f-93jm.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}