NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, an authenticated user with subscription deny permissions could bypass a plain subject deny rule by using a queue subscription, because queue-specific deny evaluation could override the plain subject deny result when the queue name itself was not denied. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.
{
"sources": [
{
"database_specific": {
"status": "Analyzed"
},
"id": "CVE-2026-58251",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-58251",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58251",
"modified": "2026-07-13T15:23:31.787Z",
"imported": "2026-08-03T18:16:27.619Z",
"published": "2026-07-08T20:16:54.630Z"
}
],
"license": "CC-BY-4.0"
}