{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "26.6.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3a730c160f8e6e4ea68f191d075a46bbbb7073d8"
            }
          ],
          "repo": "https://github.com/actualbudget/actual",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-xqjm-27pc-rvwm"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1236"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50179.json"
  },
  "details": "Actual is a local-first personal finance tool. Prior to 26.6.0, exportToCSV and exportQueryToCSV in packages/loot-core/src/server/transactions/export/export-to-csv.ts pass user-controlled Payee, Notes, Account, and Category strings to csv-stringify with no cast callback and no formula-prefix neutralization. Strings that begin with equals sign, plus, minus, at sign, tab, or carriage return survive verbatim into the exported CSV, and when a recipient opens the file in Excel, LibreOffice Calc, or Google Sheets, the strings are interpreted as formulas, enabling transaction data exfiltration and attacker-chosen spreadsheet display values. This issue is fixed in version 26.6.0.",
  "id": "CVE-2026-50179",
  "modified": "2026-08-04T11:31:00.723610941Z",
  "published": "2026-07-07T20:58:16.074Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/actualbudget/actual/releases/tag/v26.6.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50179.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/actualbudget/actual/security/advisories/GHSA-xqjm-27pc-rvwm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50179"
    },
    {
      "type": "FIX",
      "url": "https://github.com/actualbudget/actual/commit/068185751c03b42e726e3c60b718413d5f96c306"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Actual: CSV Formula Injection in Transaction Export via Imported Payee/Notes Fields"
}