{
  "schema_version": "1.5.0",
  "id": "CURL-CVE-2011-2192",
  "aliases": [
    "CVE-2011-2192"
  ],
  "summary": "inappropriate GSSAPI delegation",
  "modified": "2026-04-25T17:48:46.00Z",
  "database_specific": {
    "package": "curl",
    "affects": "both",
    "URL": "https://curl.se/docs/CVE-2011-2192.json",
    "www": "https://curl.se/docs/CVE-2011-2192.html",
    "CWE": {
      "id": "CWE-281",
      "desc": "Improper Preservation of Permissions"
    },
    "last_affected": "7.21.6",
    "severity": "Medium"
  },
  "published": "2011-06-23T08:00:00.00Z",
  "affected": [
    {
      "ranges": [
        {
           "type": "SEMVER",
           "events": [
             {"introduced": "7.10.6"},
             {"fixed": "7.21.7"}
           ]
        }      ],
      "versions": [
        "7.21.6", "7.21.5", "7.21.4", "7.21.3", "7.21.2", "7.21.1", "7.21.0", 
        "7.20.1", "7.20.0", "7.19.7", "7.19.6", "7.19.5", "7.19.4", "7.19.3", 
        "7.19.2", "7.19.1", "7.19.0", "7.18.2", "7.18.1", "7.18.0", "7.17.1", 
        "7.17.0", "7.16.4", "7.16.3", "7.16.2", "7.16.1", "7.16.0", "7.15.5", 
        "7.15.4", "7.15.3", "7.15.2", "7.15.1", "7.15.0", "7.14.1", "7.14.0", 
        "7.13.2", "7.13.1", "7.13.0", "7.12.3", "7.12.2", "7.12.1", "7.12.0", 
        "7.11.2", "7.11.1", "7.11.0", "7.10.8", "7.10.7", "7.10.6"
      ]
    }
  ],
  "credits": [
    {
      "name": "Richard Silverman",
      "type": "FINDER"
    },
    {
      "name": "Daniel Stenberg",
      "type": "REMEDIATION_DEVELOPER"
    },
    {
      "name": "Dan Fandrich",
      "type": "OTHER"
    },
    {
      "name": "Julien Chaffraix",
      "type": "OTHER"
    }
  ],
  "details": "When doing GSSAPI authentication, libcurl unconditionally performs\ncredential delegation. This hands the server a copy of the client's security\ncredentials, allowing the server to impersonate the client to any other\nusing the same GSSAPI mechanism. This is obviously a sensitive operation,\nwhich should only be done when the user explicitly so directs.\n\nThe GSS/Negotiate feature is only used by libcurl for HTTP authentication if\ntold to, and only if libcurl was built with a library that provides the\nGSSAPI. Many builds of libcurl do not have GSS enabled."
}