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vuln-cve/data/2026/55xxx/CVE-2026-55154.json
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{
"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"
}
}
]
}
}