{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.0.0"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "amphp/http-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-rc10"
            },
            {
              "fixed": "4.1.0-rc1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-770",
      "CWE-789"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-03T18:49:42Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "Early versions of `amphp/http-client` with HTTP/2 support (v4.0.0-rc10 to 4.0.0) will collect HTTP/2 `CONTINUATION` frames in an unbounded buffer and will not check the header size limit until it has received the `END_HEADERS` flag, resulting in an OOM crash. Later versions of `amphp/http-client` (v4.1.0-rc1 and up) depend on `amphp/http` for HTTP/2 processing and will therefore need an updated version of `amphp/http`, see [GHSA-qjfw-cvjf-f4fm](https://github.com/amphp/http/security/advisories/GHSA-qjfw-cvjf-f4fm).\n\n## Acknowledgements\n\nThank you to [Bartek Nowotarski](https://nowotarski.info/) for reporting the vulnerability.",
  "id": "GHSA-w8gf-g2vq-j2f4",
  "modified": "2024-04-03T18:49:42Z",
  "published": "2024-04-03T18:49:42Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/amphp/http-client/security/advisories/GHSA-w8gf-g2vq-j2f4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/amphp/http/security/advisories/GHSA-qjfw-cvjf-f4fm"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/amphp/http-client"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "amphp/http-client  Denial of Service via HTTP/2 CONTINUATION Frames"
}