{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-55154",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-16T15:13:28.165Z",
        "datePublished": "2026-10-15T14:49:15.584Z",
        "dateUpdated": "2026-10-16T17:13:56.910Z"
    },
    "containers": {
        "cna": {
            "title": "EspoCRM: CSV/Formula Injection sanitizer bypass via leading whitespace/control characters in export",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1236",
                            "lang": "en",
                            "description": "CWE-1236: Improper Neutralization of Formula Elements in a CSV File",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 5.4,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/espocrm/espocrm/security/advisories/GHSA-xrwp-2gph-985x",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/espocrm/espocrm/security/advisories/GHSA-xrwp-2gph-985x"
                },
                {
                    "name": "https://github.com/espocrm/espocrm/commit/f209248efd0d63bc8f7906cb96c07020a758eead",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espocrm/espocrm/commit/f209248efd0d63bc8f7906cb96c07020a758eead"
                },
                {
                    "name": "https://github.com/espocrm/espocrm/releases/tag/9.3.9",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espocrm/espocrm/releases/tag/9.3.9"
                }
            ],
            "affected": [
                {
                    "vendor": "espocrm",
                    "product": "espocrm",
                    "versions": [
                        {
                            "version": "< 9.3.9",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-15T14:49:15.584Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "EspoCRM is an open source customer relationship management application. Prior to 9.3.9, application/Espo/Tools/Export/Format/Csv/Processor.php, application/Espo/Tools/Export/Format/Xlsx/OpenSpoutProcessor.php, and application/Espo/Tools/Export/Format/Xlsx/PhpSpreadsheetProcessor.php inspect only the first byte in sanitizeCellValue(). An authenticated low-privileged user can store a free-text value whose formula trigger is preceded by whitespace or a control character, causing CSV or XLSX export to omit the leading single-quote formula-neutralization prefix. When a privileged user opens the exported file and accepts applicable spreadsheet security prompts, spreadsheet software can ignore the whitespace or control-character prefix and evaluate the cell as a formula, permitting outbound data disclosure and, on legacy configurations with DDE enabled, command execution. This issue is fixed in version 9.3.9."
                }
            ],
            "source": {
                "advisory": "GHSA-xrwp-2gph-985x",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-15T20:24:34.482538Z",
                                "id": "CVE-2026-55154",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-16T17:13:56.910Z"
                }
            }
        ]
    }
}