{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "5.0.0"
              },
              {
                "fixed": "5.8.2"
              },
              {
                "introduced": "0"
              },
              {
                "fixed": "4.5.7"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "e161babbd49840de2ae7a5e358e59f52d66c1f0a"
            },
            {
              "introduced": "0"
            },
            {
              "fixed": "06594a114931ab6fea76b12f0207c5903cf01f8c"
            },
            {
              "fixed": "838d6ad1c635f8a6bafc08d791b8af18d8304b3a"
            },
            {
              "fixed": "31e06fc087a8b5a9b236c1e5dacc1c2850a2c115"
            },
            {
              "fixed": "a1ccdb0518021a559b4066c37b76a42c86bbce90"
            }
          ],
          "repo": "https://github.com/smarty-php/smarty",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-cq55-c7wv-pxmq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62993.json"
  },
  "details": "Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to 4.5.7 and 5.8.2, depending on the release line, Smarty's {fetch} handling in libs/plugins/function.fetch.php and src/FunctionHandler/Fetch.php used Security::isTrustedUri() to validate only the initial remote URL against trusted_uri when a security policy was active. For resources handled by file_get_contents(), including HTTPS URLs, PHP followed HTTP redirects by default. An attacker who could supply or influence a fetch target and had an open redirect on a trusted host could redirect the request to an attacker-chosen internal endpoint, bypass the trusted_uri allowlist, and perform server-side request forgery. This issue is fixed in versions 4.5.7 and 5.8.2.",
  "id": "CVE-2026-62993",
  "modified": "2026-09-04T03:30:45.835621936Z",
  "published": "2026-08-31T20:58:03.616Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/smarty-php/smarty/releases/tag/v4.5.7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/smarty-php/smarty/releases/tag/v5.8.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62993.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-cq55-c7wv-pxmq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62993"
    },
    {
      "type": "FIX",
      "url": "https://github.com/smarty-php/smarty/commit/31e06fc087a8b5a9b236c1e5dacc1c2850a2c115"
    },
    {
      "type": "FIX",
      "url": "https://github.com/smarty-php/smarty/commit/a1ccdb0518021a559b4066c37b76a42c86bbce90"
    },
    {
      "type": "FIX",
      "url": "https://github.com/smarty-php/smarty/pull/1194"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Smarty: SSRF via redirect bypass of trusted_uri using {fetch}"
}