{
  "schema_version": "1.5.0",
  "id": "CURL-CVE-2022-27781",
  "aliases": [
    "CVE-2022-27781"
  ],
  "summary": "CERTINFO never-ending busy-loop",
  "modified": "2026-04-25T17:48:46.00Z",
  "database_specific": {
    "package": "curl",
    "affects": "lib",
    "URL": "https://curl.se/docs/CVE-2022-27781.json",
    "www": "https://curl.se/docs/CVE-2022-27781.html",
    "issue": "https://hackerone.com/reports/1555441",
    "CWE": {
      "id": "CWE-835",
      "desc": "Loop with Unreachable Exit Condition ('Infinite Loop')"
    },
    "last_affected": "7.83.0",
    "severity": "Low"
  },
  "published": "2022-05-11T08:00:00.00Z",
  "affected": [
    {
      "ranges": [
        {
           "type": "SEMVER",
           "events": [
             {"introduced": "7.34.0"},
             {"fixed": "7.83.1"}
           ]
        },
        {
           "type": "GIT",
           "repo": "https://github.com/curl/curl.git",
           "events": [
             {"introduced": "f6c335d63f2da025a0a3efde1fe59e3bb7189b70"},
             {"fixed": "5c7da89d404bf59c8dd82a001119a16d18365917"}
           ]
        }
      ],
      "versions": [
        "7.83.0", "7.82.0", "7.81.0", "7.80.0", "7.79.1", "7.79.0", "7.78.0", 
        "7.77.0", "7.76.1", "7.76.0", "7.75.0", "7.74.0", "7.73.0", "7.72.0", 
        "7.71.1", "7.71.0", "7.70.0", "7.69.1", "7.69.0", "7.68.0", "7.67.0", 
        "7.66.0", "7.65.3", "7.65.2", "7.65.1", "7.65.0", "7.64.1", "7.64.0", 
        "7.63.0", "7.62.0", "7.61.1", "7.61.0", "7.60.0", "7.59.0", "7.58.0", 
        "7.57.0", "7.56.1", "7.56.0", "7.55.1", "7.55.0", "7.54.1", "7.54.0", 
        "7.53.1", "7.53.0", "7.52.1", "7.52.0", "7.51.0", "7.50.3", "7.50.2", 
        "7.50.1", "7.50.0", "7.49.1", "7.49.0", "7.48.0", "7.47.1", "7.47.0", 
        "7.46.0", "7.45.0", "7.44.0", "7.43.0", "7.42.1", "7.42.0", "7.41.0", 
        "7.40.0", "7.39.0", "7.38.0", "7.37.1", "7.37.0", "7.36.0", "7.35.0", 
        "7.34.0"
      ]
    }
  ],
  "credits": [
    {
      "name": "Florian Kohnhäuser",
      "type": "FINDER"
    },
    {
      "name": "Daniel Stenberg",
      "type": "REMEDIATION_DEVELOPER"
    }
  ],
  "details": "libcurl provides the `CURLOPT_CERTINFO` option to allow applications to\nrequest details to be returned about a TLS server's certificate chain.\n\nDue to an erroneous function, a malicious server could make libcurl built with\nNSS get stuck in a never-ending busy-loop when trying to retrieve that\ninformation."
}