{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:rust:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.2.2"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8f60a2d75b74b55764ecf34bd4435f4961630595"
            },
            {
              "fixed": "5bd15d9af710abeecdfb63d0a721dc883efb59c4"
            }
          ],
          "repo": "https://github.com/nimiq/core-rs-albatross",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5rm9-893q-vmhm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-191"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33184.json"
  },
  "details": "nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.3.0, the discovery handler accepts a peer-controlled limit during handshake and stores it unchanged. The immediate HandshakeAck path then honors limit = 0 and returns zero contacts, which makes the session look benign. Later, after the same session reaches Established, the periodic update path computes self.peer_list_limit.unwrap() as usize - 1. With limit = 0, that wraps to usize::MAX and then in rand 0.9.2, choose_multiple() immediately attempts Vec::with_capacity(amount), which deterministically panics with capacity overflow. This issue has been patched in version 1.3.0.",
  "id": "CVE-2026-33184",
  "modified": "2026-08-12T03:51:25.567231202Z",
  "published": "2026-04-03T22:09:01.430Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33184.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-5rm9-893q-vmhm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33184"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nimiq/core-rs-albatross/commit/8f60a2d75b74b55764ecf34bd4435f4961630595"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nimiq/core-rs-albatross/pull/3664"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "nimiq/core-rs-albatross: Discovery handshake limit could underflow and later provoke a deterministic overflow panic"
}