Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5

{
  "id": "9c7fe507d65a84e99f36ea10ac37de9fd73a64eb9a5340ad927339eb932f1501",
  "url": "https://osv.dev/vulnerability/CLEANSTART-2026-HN97324",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5",
    "summary": "CVE-2026-71290 affects multiple packages. Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5. See references for individual vulnerability details.",
    "evidence": "osv:CLEANSTART-2026-HN97324",
    "products": [
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    "severity": "critical",
    "structured": {
      "id": "CLEANSTART-2026-HN97324",
      "aliases": [
        "CLEANSTART-2026-HN97324"
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
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      ],
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      ],
      "modified": "2026-10-15T01:00:12.677650247Z",
      "provider": "osv",
      "upstream": [
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      "references": [
        "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-HN97324.json",
        "https://osv.dev/vulnerability/CVE-2026-71290",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-71290"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 318214,
  "published_at": "2026-10-15T00:40:28.629356+00:00"
}