{
  "schema_version": "1.5.0",
  "id": "CURL-CVE-2026-9080",
  "aliases": [
    "CVE-2026-9080"
  ],
  "summary": "UAF after pause in socket callback",
  "modified": "2026-06-24T15:14:27.00Z",
  "database_specific": {
    "package": "curl",
    "affects": "lib",
    "URL": "https://curl.se/docs/CVE-2026-9080.json",
    "www": "https://curl.se/docs/CVE-2026-9080.html",
    "issue": "https://hackerone.com/reports/3749204",
    "CWE": {
      "id": "CWE-416",
      "desc": "Use After Free"
    },
    "last_affected": "8.20.0",
    "severity": "Low"
  },
  "published": "2026-06-24T08:00:00.00Z",
  "affected": [
    {
      "ranges": [
        {
           "type": "SEMVER",
           "events": [
             {"introduced": "8.13.0"},
             {"fixed": "8.21.0"}
           ]
        },
        {
           "type": "GIT",
           "repo": "https://github.com/curl/curl.git",
           "events": [
             {"introduced": "cfc657a48dbafb4194676d4c9d841388b3a22210"},
             {"fixed": "5ab34cba42e4ee4282fe8bab43f311d51b9bf9bd"}
           ]
        }
      ],
      "versions": [
        "8.20.0", "8.19.0", "8.18.0", "8.17.0", "8.16.0", "8.15.0", "8.14.1", 
        "8.14.0", "8.13.0"
      ]
    }
  ],
  "credits": [
    {
      "name": "Joshua Rogers (Aisle Research)",
      "type": "FINDER"
    },
    {
      "name": "Daniel Stenberg",
      "type": "REMEDIATION_DEVELOPER"
    }
  ],
  "details": "Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION`\ncallback triggers a use-after-free vulnerability, where libcurl attempts to\nstore a flag using a dangling struct pointer immediately after that pointer's\nmemory has been freed."
}