CVE-2026-93494

{
  "etk_id": "ETK-2026-196",
  "cve_id": "CVE-2026-93494",
  "display_id": "CVE-2026-93494",
  "ghsa_id": "GHSA-ghg5-c4jg-8q5j",
  "euvd_id": "EUVD-2026-82745",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Memory leak in netty-codec-stomp STOMP decoder",
  "summary": "Applications using the affected Netty STOMP codec can retain a buffer after a client sends a frame body but does not complete the frame terminator. A remote client can repeat this behavior across connections to consume process memory and eventually impair availability. The condition is reachable when the application accepts STOMP traffic, including before application-level authentication.",
  "mitigation": "Upgrade io.netty:netty-codec-stomp to 4.1.138.Final or 4.2.18.Final, as appropriate for the deployed release line. Until upgraded, restrict untrusted STOMP access and limit connection churn where possible.",
  "vendor": "maven",
  "product": "maven:io.netty:netty-codec-stomp",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 4.1.137.Final"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "4.1.138.Final"
      ],
      "package_name": "io.netty:netty-codec-stomp",
      "purl": "pkg:maven/io.netty/netty-codec-stomp"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 4.2.0.Final, <= 4.2.17.Final"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "4.2.18.Final"
      ],
      "package_name": "io.netty:netty-codec-stomp",
      "purl": "pkg:maven/io.netty/netty-codec-stomp"
    }
  ],
  "cwes": [
    772
  ],
  "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:N/A:H",
  "epss_score": 0.0041,
  "epss_percentile": 0.3384,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 135.92095458333333,
  "t0_at": "2026-09-18T07:39:17.069000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-09-18T07:39:17.069000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-18T07:39:17.069000+00:00",
      "url": "https://github.com/netty/netty/security/advisories/GHSA-ghg5-c4jg-8q5j"
    }
  }
}