CVE-2026-121823

{
  "etk_id": "ETK-2026-3765",
  "cve_id": "CVE-2026-121823",
  "display_id": "CVE-2026-121823",
  "ghsa_id": "GHSA-xqhm-4ph4-423v",
  "euvd_id": "EUVD-2026-117990",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Path-based authorization bypass in Armeria",
  "summary": "Armeria versions before 1.43.0 can inconsistently normalize request paths between path-scoped decorators and FileService, TomcatService, or JettyService. An unauthenticated attacker may bypass decorator-based access controls and reach protected resources when a server protects a path prefix with a decorator in front of one of those services.",
  "mitigation": "Upgrade com.linecorp.armeria:armeria to version 1.43.0 or later. Until upgraded, avoid relying solely on path-scoped decorators to protect resources served by FileService, TomcatService, or JettyService.",
  "vendor": "maven",
  "product": "maven:com.linecorp.armeria:armeria",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.42.0"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "1.43.0"
      ],
      "package_name": "com.linecorp.armeria:armeria",
      "purl": "pkg:maven/com.linecorp.armeria/armeria"
    }
  ],
  "cwes": [
    647
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
  "epss_score": 0.0044,
  "epss_percentile": 0.3831,
  "epss_asof": "2026-11-06",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 10.824618233333334,
  "t0_at": "2026-11-06T07:46:56.347000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-06T22:00:17.129983+00:00",
      "days": 0.5926016548958334,
      "is_lower_bound": false,
      "measured_at": "2026-11-06T07:46:56.347000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-11-06T07:17:54+00:00",
      "days": -0.02016605324074074,
      "is_lower_bound": false,
      "measured_at": "2026-11-06T07:46:56.347000+00:00",
      "url": "https://github.com/line/armeria/security/advisories/GHSA-xqhm-4ph4-423v"
    },
    "trigger_signal": {
      "at": "2026-11-06T07:46:56.347000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-06T07:46:56.347000+00:00",
      "url": "https://github.com/line/armeria/security/advisories/GHSA-xqhm-4ph4-423v"
    }
  }
}