CVE-2026-102479

{
  "etk_id": "ETK-2026-962",
  "cve_id": "CVE-2026-102479",
  "display_id": "CVE-2026-102479",
  "ghsa_id": "GHSA-ch7p-g5pm-3gqx",
  "euvd_id": "EUVD-2026-101557",
  "status": "published",
  "anchor_state": "anchored",
  "title": "HTTP request smuggling in Vert.x Core HTTP/1.x decoder",
  "summary": "Vert.x Core versions 5.0.0 through 5.0.12, 5.1.0 through 5.1.9, and 5.2.0 mishandle certain HTTP/1.x header names during normalization. An attacker able to send requests to the affected decoder may use this behavior to smuggle HTTP requests.",
  "mitigation": "Upgrade io.vertx:vertx-core to 5.1.10 or 5.2.1. Move deployments on 5.0.x to a fixed supported release.",
  "vendor": "maven",
  "product": "maven:io.vertx:vertx-core",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 5.0.0, <= 5.1.8"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "5.1.10"
      ],
      "package_name": "io.vertx:vertx-core",
      "purl": "pkg:maven/io.vertx/vertx-core"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "5.2.0"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "5.2.1"
      ],
      "package_name": "io.vertx:vertx-core",
      "purl": "pkg:maven/io.vertx/vertx-core"
    }
  ],
  "cwes": null,
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
  "epss_score": 0.0027,
  "epss_percentile": 0.1864,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 12.2413309,
  "t0_at": "2026-10-14T18:43:54.623000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-14T23:17:24.361083+00:00",
      "days": 0.1899275241087963,
      "is_lower_bound": false,
      "measured_at": "2026-10-14T18:43:54.623000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-07T21:54:01+00:00",
      "days": -6.867981747685185,
      "is_lower_bound": false,
      "measured_at": "2026-10-14T18:43:54.623000+00:00",
      "url": "https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-ch7p-g5pm-3gqx"
    }
  }
}