CISA Thorium does not validate TLS connections to Elasticsearch

{
  "id": "c869fc1e7e5fefc1db749db5ef264b43bab4b5b24971cb3d9625a74c98b43710",
  "url": "https://osv.dev/vulnerability/CVE-2025-35434",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CISA Thorium does not validate TLS connections to Elasticsearch",
    "summary": "CISA Thorium does not validate TLS certificates when connecting to Elasticsearch. An unauthenticated attacker with access to a Thorium cluster could impersonate the Elasticsearch service. Fixed in 1.1.2.",
    "evidence": "osv:CVE-2025-35434",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2025-35434",
      "aliases": [
        "CVE-2025-35434"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cisagov/thorium",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f200302cd46199e40bfbad23736600f9e886cb1a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.0.0"
                      },
                      {
                        "fixed": "1.1.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f200302cd46199e40bfbad23736600f9e886cb1a"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "1.1.2"
                  },
                  {
                    "cpe": "cpe:2.3:a:cisa:thorium:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.1.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.1.1",
            "1.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-35434.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.493406226Z",
      "provider": "osv",
      "references": [
        "https://github.com/cisagov/thorium/blob/main/api/src/models/backends/setup/elastic_setup.rs#L36-L43",
        "https://github.com/cisagov/thorium/releases/tag/1.1.2",
        "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-259-01.json",
        "https://www.cve.org/CVERecord?id=CVE-2025-35434",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/35xxx/CVE-2025-35434.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-35434"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-295"
        ],
        "cna_assigner": "cisa-cg",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/35xxx/CVE-2025-35434.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-35434",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504723,
  "published_at": "2025-09-17T16:53:08.899+00:00"
}