case insensitive password comparison

{
  "id": "8bf9fb2ffdd438969939c464af035b2ab9850ab1aabc8896d8f7dd78bf826fed",
  "url": "https://osv.dev/vulnerability/CURL-CVE-2016-8616",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "case insensitive password comparison",
    "summary": "When reusing a connection, curl was doing case insensitive comparisons of username and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has connection-scoped credentials, an attacker can cause that connection to be reused if s/he knows the case-insensitive version of the correct password.",
    "evidence": "osv:CURL-CVE-2016-8616",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CURL-CVE-2016-8616",
      "aliases": [
        "CURL-CVE-2016-8616",
        "CVE-2016-8616"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "7.7"
                },
                {
                  "fixed": "7.51.0"
                }
              ]
            }
          ],
          "versions": [
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          ],
          "database_specific": {
            "source": "https://curl.se/docs/CURL-CVE-2016-8616.json"
          }
        }
      ],
      "modified": "2026-10-24T23:17:46Z",
      "provider": "osv",
      "references": [],
      "provider_metadata": {
        "CWE": {
          "id": "CWE-178",
          "desc": "Improper Handling of Case Sensitivity"
        },
        "URL": "https://curl.se/docs/CVE-2016-8616.json",
        "www": "https://curl.se/docs/CVE-2016-8616.html",
        "affects": "both",
        "package": "curl",
        "severity": "Medium",
        "last_affected": "7.50.3"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2016-8616",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 444203,
  "published_at": "2016-11-02T08:00:00+00:00"
}