data/osv/GO-2026-4533.json

{
  "schema_version": "1.3.1",
  "id": "GO-2026-4533",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2026-27571",
    "GHSA-qrvq-68c2-7grw"
  ],
  "summary": "nats-server websockets are vulnerable to pre-auth memory DoS in github.com/nats-io/nats-server",
  "details": "nats-server websockets are vulnerable to pre-auth memory DoS in github.com/nats-io/nats-server",
  "affected": [
    {
      "package": {
        "name": "github.com/nats-io/nats-server",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "ecosystem_specific": {}
    },
    {
      "package": {
        "name": "github.com/nats-io/nats-server/v2",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.11.12"
            },
            {
              "introduced": "2.12.0-RC.1"
            },
            {
              "fixed": "2.12.3"
            }
          ]
        }
      ],
      "ecosystem_specific": {}
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/nats-io/nats-server/security/advisories/GHSA-qrvq-68c2-7grw"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nats-io/nats-server/commit/f77fb7c4535e6727cc1a2899cd8e6bbdd8ba2017"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nats-io/nats-server/releases/tag/v2.11.12"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nats-io/nats-server/releases/tag/v2.12.3"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2026-4533",
    "review_status": "UNREVIEWED"
  }
}