elasticsearch-9.5 — security advisory

{
  "id": "2889295d54e24a52d8975c3250a013d5816abd83a1ee911ce18d786f092b6708",
  "url": "https://osv.dev/vulnerability/CGA-9mp2-pcph-qxwh",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-9mp2-pcph-qxwh",
    "summary": "CGA-9mp2-pcph-qxwh",
    "evidence": "osv:CGA-9mp2-pcph-qxwh",
    "products": [
      {
        "name": {
          "value": "elasticsearch-9.5",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.5.5-r0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CGA-9mp2-pcph-qxwh",
      "aliases": [
        "CGA-9mp2-pcph-qxwh"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.5.5-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "elasticsearch-9.5",
            "purl": "pkg:apk/chainguard/elasticsearch-9.5?arch=aarch64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-9mp2-pcph-qxwh.json"
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "netty-handler",
                "component_purl": "pkg:maven/netty-handler@4.1.135.Final",
                "component_type": "java-archive",
                "component_version": "4.1.135.Final",
                "component_location": "/usr/share/elasticsearch/modules/esql-datasource-grpc/netty-handler-4.1.135.Final.jar",
                "latest_event_status": "fixed",
                "latest_event_timestamp": "2026-10-06T19:12:11Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-06T23:16:18.274037699Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-75595",
        "GHSA-c4c3-7fpv-j4q5"
      ],
      "references": [
        "https://github.com/netty/netty/releases/tag/netty-4.1.137.Final",
        "https://github.com/netty/netty/releases/tag/netty-4.2.17.Final",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75595.json",
        "https://github.com/netty/netty/security/advisories/GHSA-c4c3-7fpv-j4q5",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-75595",
        "https://github.com/netty/netty/commit/1b5abc6443b63726c72cdd285af2feb7ddbb8ff7",
        "https://github.com/netty/netty/commit/9e0519239108a69b7e9bbc5e9182ee139a0d7961",
        "https://github.com/netty/netty/pull/17213",
        "https://github.com/netty/netty/pull/17217"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-75595",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 92087,
  "published_at": "2026-09-09T12:26:22+00:00"
}