logstash-9.5 — security advisory

{
  "id": "57d3515c5282edf1cd7a515ee64cd8e87a650cf63faafbe56bcdb848583a608f",
  "url": "https://osv.dev/vulnerability/CGA-65j3-wcrh-7ccc",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-65j3-wcrh-7ccc",
    "summary": "CGA-65j3-wcrh-7ccc",
    "evidence": "osv:CGA-65j3-wcrh-7ccc",
    "products": [
      {
        "name": {
          "value": "logstash-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-65j3-wcrh-7ccc",
      "aliases": [
        "CGA-65j3-wcrh-7ccc"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/U:Amber"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.5.5-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "logstash-9.5",
            "purl": "pkg:apk/chainguard/logstash-9.5?arch=aarch64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-65j3-wcrh-7ccc.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "bcprov-jdk18on",
                "component_purl": "pkg:maven/bcprov-jdk18on@1.84",
                "component_type": "java-archive",
                "component_version": "1.84",
                "component_location": "/usr/share/logstash/vendor/jruby/lib/ruby/stdlib/org/bouncycastle/bcprov-jdk18on/1.84/bcprov-jdk18on-1.84.jar",
                "latest_event_status": "fixed",
                "latest_event_timestamp": "2026-10-19T17:35:09Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-19T21:30:39.587269944Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-8763",
        "GHSA-9pwp-9qqc-pr26"
      ],
      "references": [
        "https://www.bouncycastle.org/download/bouncy-castle-java-fips/",
        "https://www.bouncycastle.org/download/bouncy-castle-java-lts/",
        "https://www.bouncycastle.org/download/bouncy-castle-java/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8763.json",
        "https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%908763",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-8763",
        "https://github.com/bcgit/bc-java/commit/2c28b253a44681fbbc562561eab6ad383d2ae558",
        "https://github.com/bcgit/bc-java",
        "https://github.com/bcgit/bc-lts-java"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-8763",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 376041,
  "published_at": "2026-09-19T15:30:25+00:00"
}