{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:f5:njs:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0.9.4"
              },
              {
                "fixed": "0.9.9"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "927d38d8438e8b3b3db63af4d9f6324210fd5dab"
            },
            {
              "fixed": "9ead4e71f74a27279f3212bdb6cadb0e86981a1b"
            }
          ],
          "repo": "https://github.com/nginx/njs",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "NGINX JavaScript has a vulnerability when the js_fetch_proxy directive is configured with at least one client-controlled NGINX variable (for example, $http_*, $arg_*, $cookie_*) and a location invoking the ngx.fetch() operation from NGINX JavaScript. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
  "id": "CVE-2026-8711",
  "modified": "2026-07-08T05:37:59.487898535Z",
  "published": "2026-05-19T15:16:33.017Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://my.f5.com/manage/s/article/K000161307"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}