Security advisory

{
  "id": "0fe24ab9ea38b4bbfe8b7e6adb6498fd095eb93bc6d9cde3117594fff71bf3b2",
  "url": "https://osv.dev/vulnerability/CVE-2020-26149",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-26149",
    "summary": "NATS nats.js before 2.0.0-209, nats.ws before 1.0.0-111, and nats.deno before 1.0.0-9 allow credential disclosure from a client to a server.",
    "evidence": "osv:CVE-2020-26149",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-26149",
      "aliases": [
        "CVE-2020-26149",
        "GHSA-82rf-q3pr-4f6p"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nats-io/nats.deno",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e7c566eb9941cd07bfd891a6965bd4e46cbdc8c3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:nats.deno:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.0-9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.0.0-8",
            "v1.0.0-7",
            "v1.0.0-6",
            "v1.0.0-5",
            "v1.0.0-4",
            "v1.0.0-3",
            "v1.0.0-2",
            "v1.0.0-1",
            "v0.1.1-31",
            "v0.1.1-23",
            "v0.1.1-22",
            "v0.1.1-21",
            "v0.1.1-19",
            "v0.1.1.-18",
            "v0.1.1-0",
            "v0.1.0-0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26149.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/nats-io/nats.ws",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0a37ac2a411ff63f0707cda69a268c5fc4079eb7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "0a37ac2a411ff63f0707cda69a268c5fc4079eb7"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.0.0-17"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26149.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:56.920681163Z",
      "provider": "osv",
      "references": [
        "https://github.com/nats-io/nats.deno/compare/v1.0.0-8...v1.0.0-9",
        "https://github.com/nats-io/nats.ws/commit/0a37ac2a411ff63f0707cda69a268c5fc4079eb7"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:linuxfoundation:nats.js:*:*:*:*:*:node.js:*:*"
            ],
            "vendor_product": "linuxfoundation:nats.js",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2.0.0-209"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:linuxfoundation:nats.ws:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "linuxfoundation:nats.ws",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.0.0-111"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-26149",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384079,
  "published_at": "2020-09-30T18:15:27.023+00:00"
}