{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.5.0"
                  },
                  {
                    "fixed": "1.13.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          "events": [
            {
              "introduced": "d3589f97706eac585cdafddbc059cdd53711faf9"
            },
            {
              "fixed": "233f793654acf53be41385a4a29ac5e126cf6701"
            }
          ],
          "repo": "https://github.com/php/frankenphp",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-996f-w38m-f574"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-488"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128026.json"
  },
  "details": "FrankenPHP from 1.5.0 before 1.13.0 contains an incomplete environment sandbox vulnerability in which putenv writes to the process-wide OS environment via os.Setenv, leaking values across concurrent requests. Attackers reaching a request path that spawns child processes with the default environment through proc_open or exec can read secrets such as database passwords set by other requests.",
  "id": "CVE-2026-128026",
  "modified": "2026-11-14T02:30:45.708568097Z",
  "published": "2026-11-13T09:34:03.804Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128026.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/php/frankenphp/security/advisories/GHSA-996f-w38m-f574"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-128026"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/frankenphp-1.5.0-before-1.13.0-cross-request-environment-leakage-via-putenv"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "FrankenPHP 1.5.0 before 1.13.0 Cross-Request Environment Leakage via putenv"
}