{
"id": "GHSA-vghx-352f-93jm",
"aliases": [
"CVE-2026-46543"
],
"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).",
"summary": "nimiq-blockchain: Genesis batch set request",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0"
}
]
}
],
"package": {
"name": "nimiq-blockchain",
"ecosystem": "crates.io"
}
}
],
"modified": "2026-06-10T13:41:37Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"published": "2026-05-21T19:46:15Z",
"references": [
{
"url": "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-vghx-352f-93jm",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46543",
"type": "ADVISORY"
},
{
"url": "https://github.com/nimiq/core-rs-albatross/pull/3745",
"type": "WEB"
},
{
"url": "https://github.com/nimiq/core-rs-albatross/commit/8e8b0abdb1b66f5e9b25b3833879f05c173a5596",
"type": "WEB"
},
{
"url": "https://github.com/nimiq/core-rs-albatross",
"type": "PACKAGE"
},
{
"url": "https://github.com/nimiq/core-rs-albatross/releases/tag/v1.5.0",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-617"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-06-10T00:16:54Z",
"github_reviewed_at": "2026-05-21T19:46:15Z"
}
}