(DoS) Denial of Service from unchecked request length in conduit-hyper

{
  "id": "186e82711e8268deee3c1900771d8b85cfb12b553afad79dc4191c22f5370936",
  "url": "https://osv.dev/vulnerability/CVE-2022-39294",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "(DoS) Denial of Service from unchecked request length in conduit-hyper",
    "summary": "conduit-hyper integrates a conduit application with the hyper server. Prior to version 0.4.2, `conduit-hyper` did not check any limit on a request's length before calling [`hyper::body::to_bytes`](https://docs.rs/hyper/latest/hyper/body/fn.to_bytes.html). An attacker could send a malicious request with an abnormally large `Content-Length`, which could lead to a panic if memory allocation failed for that request. In version 0.4.2, `conduit-hyper` sets an internal limit of 128 MiB per request, otherwise returning status 400 (\"Bad Request\"). This crate is part of the implementation of Rust's [crates.io](https://crates.io/), but that service is not affected due to its existing cloud infrastructure, which already drops such malicious requests. Even with the new limit in place, `conduit-hyper` is not recommended for production use, nor to directly serve the public Internet.",
    "evidence": "osv:CVE-2022-39294",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-39294",
      "aliases": [
        "CVE-2022-39294",
        "GHSA-9398-5ghf-7pr6",
        "RUSTSEC-2022-0066"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/conduit-rust/conduit-hyper",
              "type": "GIT",
              "events": [
                {
                  "introduced": "83cc0dd046bc69bd5963d28565d1f824262d8001"
                },
                {
                  "fixed": "ceba64508b4d44cd13578610f02245c0eb7fea70"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.2.0-alpha.3"
                      },
                      {
                        "fixed": "0.4.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.2.0-NA",
            "v0.4.1",
            "v0.4.0",
            "v0.3.0",
            "v0.3.0-alpha.7",
            "v0.3.0-alpha.5",
            "v0.3.0-alpha.6",
            "v0.3.0-alpha.4",
            "v0.3.0-alpha.3",
            "v0.3.0-alpha.2",
            "v0.3.0-alpha.1",
            "v0.3.0-alpha.0",
            "v0.2.0",
            "v0.2.0-alpha.4",
            "v0.2.0-alpha.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-39294.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.321102860Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39294.json",
        "https://github.com/conduit-rust/conduit-hyper/security/advisories/GHSA-9398-5ghf-7pr6",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-39294"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-400"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39294.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-39294",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490935,
  "published_at": "2022-10-31T00:00:00+00:00"
}