{
  "cveId": "CVE-2026-54399",
  "url": "https://patchblox.com/security/cve/CVE-2026-54399",
  "summary": "CVE-2026-54399 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-54399, released July 1, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "httpcomponents-core5: Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser\u00A0in Apache HttpComponents Core (5.4.2 a...",
  "description": "Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser\u00A0in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows\u00A0an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length",
  "published": "2026-07-01T17:16:36Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00779,
  "epssPercentile": 0.56152,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "httpcomponents-core",
      "release": "amzn 2023",
      "fixedVersion": "4.4.13-6.amzn2023.0.4",
      "fix": "ALAS2023-2026-1948",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1948",
      "released": "2026-07-20T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "httpcomponents-core-javadoc",
      "release": "amzn 2023",
      "fixedVersion": "4.4.13-6.amzn2023.0.4",
      "fix": "ALAS2023-2026-1948",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1948",
      "released": "2026-07-20T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "httpcomponents-core5",
      "release": "Debian 14",
      "fixedVersion": "5.4.3-1",
      "fix": "DEBIAN-CVE-2026-54399",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54399",
      "released": "2026-07-01T17:16:36Z"
    },
    {
      "platform": "linux",
      "product": "javapackages-bootstrap",
      "release": "amzn 2023",
      "fixedVersion": "1.5.0^20220105.git9f283b7-3.amzn2023.0.10",
      "fix": "ALAS2023-2026-2055",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2055",
      "released": "2026-08-17T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}