{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "60aac0c318141f822f712e641b0ff0c50d9bcd6f"
            },
            {
              "fixed": "25a0d3d527954394415630544a3138068a4a4f88"
            }
          ],
          "repo": "https://github.com/vshakitskiy/ewe",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-4w98-xf39-23gp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-825"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32873.json"
  },
  "details": "ewe is a Gleam web server. Versions 0.8.0 through 3.0.4 contain a bug in the handle_trailers function where rejected trailer headers (forbidden or undeclared) cause an infinite loop. When handle_trailers encounters such a trailer, three code paths (lines 520, 523, 526) recurse with the original buffer (rest) instead of advancing past the rejected header (Buffer(header_rest, 0)), causing decoder.decode_packet to re-parse the same header on every iteration. The resulting loop has no timeout or escape — the BEAM process permanently wedges at 100% CPU. Any application that calls ewe.read_body on chunked requests is affected, and this is exploitable by any unauthenticated remote client before control returns to application code, making an application-level workaround impossible. This issue is fixed in version 3.0.5.",
  "id": "CVE-2026-32873",
  "modified": "2026-04-01T23:10:20.305983624Z",
  "published": "2026-03-20T01:13:39.665Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32873.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/vshakitskiy/ewe/security/advisories/GHSA-4w98-xf39-23gp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32873"
    },
    {
      "type": "FIX",
      "url": "https://github.com/vshakitskiy/ewe/commit/8513de9dcdd0005f727c0f6f15dd89f8d626f560"
    },
    {
      "type": "FIX",
      "url": "https://github.com/vshakitskiy/ewe/commit/d8b9b8a86470c0cb5696647997c2f34763506e37"
    }
  ],
  "schema_version": "1.7.3",
  "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": "ewe: Loop with Unreachable Exit Condition ('Infinite Loop')"
}