{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:facebook:proxygen:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2020.05.18.00"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c767d0cb3e2ba6dd6e78a3b6e4c84e633183ced1"
            }
          ],
          "repo": "https://github.com/facebook/proxygen",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "A use-after-free is possible due to an error in lifetime management in the request adaptor when a malicious client invokes request error handling in a specific sequence. This issue affects versions of proxygen prior to v2020.05.18.00.",
  "id": "CVE-2020-1897",
  "modified": "2026-07-08T05:38:23.952597396Z",
  "published": "2020-05-18T22:15:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.facebook.com/security/advisories/cve-2020-1897"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}