Security advisory

{
  "id": "22a1dc0a5772fcdd22b55084b3fcf9ef2505d3a69b0ba17c8ffc38af67dff0ef",
  "url": "https://osv.dev/vulnerability/CVE-2016-10931",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-10931",
    "summary": "An issue was discovered in the openssl crate before 0.9.0 for Rust. There is an SSL/TLS man-in-the-middle vulnerability because certificate verification is off by default and there is no API for hostname verification.",
    "evidence": "osv:CVE-2016-10931",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2016-10931",
      "aliases": [
        "CVE-2016-10931",
        "GHSA-34p9-f4q3-c4r7",
        "RUSTSEC-2016-0001"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/rust-openssl/rust-openssl",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a0b56c437803a08413755928040a0970a93a7b83"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:rust-openssl_project:rust-openssl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.9.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "openssl-v0.8.3",
            "openssl-v0.8.2",
            "openssl-sys-v0.7.17",
            "openssl-v0.8.1",
            "openssl-sys-v0.7.16",
            "openssl-v0.8.0",
            "openssl-sys-v0.7.15",
            "v0.7.14",
            "v0.7.13",
            "v0.7.12",
            "v0.7.11",
            "v0.7.10",
            "v0.7.9",
            "v0.7.8",
            "v0.7.7",
            "v0.7.6",
            "v0.7.5",
            "v0.7.4",
            "v0.7.3",
            "v0.7.2",
            "v0.7.1",
            "v0.7.0",
            "v0.6.7",
            "v0.6.6",
            "v0.6.5",
            "v0.6.4",
            "v0.6.3",
            "v0.6.2",
            "v0.6.1",
            "v0.6.0",
            "v0.5.5",
            "v0.5.4",
            "v0.5.3",
            "v0.5.2",
            "v0.5.0",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.6",
            "v0.3.5",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.16",
            "v0.2.18",
            "v0.2.17",
            "v0.2.15",
            "v0.2.14",
            "v0.2.13",
            "v0.2.12",
            "v0.2.11",
            "v0.2.10",
            "v0.2.9",
            "v0.2.8",
            "v0.2.7",
            "v0.2.6",
            "v0.2.5",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.1.1",
            "v0.1.0",
            "v0.0.2",
            "rust-0.12",
            "rust-0.11",
            "rust-0.10",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-10931.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:53.846223767Z",
      "provider": "osv",
      "references": [
        "https://rustsec.org/advisories/RUSTSEC-2016-0001.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2016-10931",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438021,
  "published_at": "2019-08-26T12:15:11.327+00:00"
}