Security advisory

{
  "id": "2b5edcc8dbfe0bc95100bb78eb2ca3d95b4314f42e9085c6ec83eb57fc22e450",
  "url": "https://osv.dev/vulnerability/CVE-2021-26120",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-26120",
    "summary": "Smarty before 3.1.39 allows code injection via an unexpected function name after a {function name= substring.",
    "evidence": "osv:CVE-2021-26120",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-26120",
      "aliases": [
        "CVE-2021-26120",
        "GHSA-3rpf-5rqv-689q"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/smarty-php/smarty",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e27da524f7bcd7361e3ea5cdfa99c4378a7b5419"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:smarty:smarty:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.1.39"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.1.38",
            "v3.1.37.1",
            "v3.1.37",
            "v3.1.36",
            "v3.1.35",
            "v3.1.34",
            "v3.1.33",
            "v3.1.32",
            "v3.1.31",
            "v3.1.30",
            "v3.1.29",
            "v3.1.28",
            "v2.6.28",
            "v3.1.27",
            "v3.1.26",
            "v3.1.25",
            "v3.1.24",
            "v3.1.23",
            "v3.1.21",
            "v3.1.20",
            "v3.1.19",
            "v3.1.18",
            "v3.1.17",
            "v3.1.16",
            "v3.1.15",
            "v3.1.14",
            "v3.1.13",
            "v3.1.12",
            "v3.1.11",
            "v2.6.27",
            "v2.6.26",
            "v2.6.25",
            "v2.6.24"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26120.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:34.274355723Z",
      "provider": "osv",
      "references": [
        "https://github.com/smarty-php/smarty/blob/master/CHANGELOG.md",
        "https://lists.debian.org/debian-lts-announce/2021/04/msg00004.html",
        "https://lists.debian.org/debian-lts-announce/2021/04/msg00014.html",
        "https://www.debian.org/security/2022/dsa-5151",
        "https://security.gentoo.org/glsa/202105-06"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  },
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-26120",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385615,
  "published_at": "2021-02-22T02:15:14.323+00:00"
}