CVE-2026-121820

{
  "etk_id": "ETK-2026-3703",
  "cve_id": "CVE-2026-121820",
  "display_id": "CVE-2026-121820",
  "ghsa_id": "GHSA-6hgp-j5h7-33m3",
  "euvd_id": "EUVD-2026-117987",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unbounded SAML Redirect decompression in armeria-saml",
  "summary": "Armeria's armeria-saml component is affected in versions earlier than 1.43.0. An unauthenticated remote attacker able to submit SAML messages through the HTTP-Redirect binding can exhaust server memory and cause denial of service.",
  "mitigation": "Upgrade armeria-saml to version 1.43.0 or later. Restrict access to SAML HTTP-Redirect endpoints until the upgrade is complete.",
  "vendor": "LY Corporation",
  "product": "Armeria",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.42.0"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "1.43.0"
      ],
      "package_name": "com.linecorp.armeria:armeria-saml",
      "purl": "pkg:maven/com.linecorp.armeria/armeria-saml"
    }
  ],
  "cwes": null,
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 47.00228381666667,
  "t0_at": "2026-11-06T07:46:48.261000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-06T07:46:48.261000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-06T07:46:48.261000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-121820"
    }
  }
}