CVE-2026-55154

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Source
https://cve.org/CVERecord?id=CVE-2026-55154
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55154.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55154
Aliases
  • GHSA-xrwp-2gph-985x
Published
2026-10-15T14:49:15Z
Modified
2026-10-16T02:47:48Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
EspoCRM: CSV/Formula Injection sanitizer bypass via leading whitespace/control characters in export
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-1236"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55154.json"
}
References

Affected packages

Git / github.com/espocrm/espocrm

Affected ranges

Type
GIT
Repo
https://github.com/espocrm/espocrm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
07653eb9be71f2663a2e2818647f2729433ebd34
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "9.3.9"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

1.*
1.0.0
1.0.1
1.1.0
1.1.1
1.1.2
1.2.0
2.*
2.0.1
2.3.0
2.4.0
2.5.0
2.5.1
2.5.2
2.6.0
2.8.0
2.8.1
2.9.0
3.*
3.0.0
3.1.0
3.2.0
3.3.0
3.4.0
3.4.1
3.4.2
3.5.0
3.6.0
3.6.1
3.7.0
3.7.1
3.8.0
3.9.0
3.9.1
4.*
4.0.0
4.0.0-beta.1
4.0.0-beta.2
4.0.0-beta.3
4.0.0-beta.4
4.0.1
4.0.2
4.0.3
4.1.0
4.1.1
4.1.2
4.1.3
4.1.4
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.3.0
4.3.0-beta.1
4.3.0-beta.2
4.4.0
4.5.0
4.6.0
4.7.0
4.8.0
5.*
5.0.0
5.0.1
5.1.0
5.1.1
5.1.2
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.3.0
5.3.1
5.3.2
5.4.0
5.4.1
5.4.2
5.4.3
5.5.0
5.5.1
5.6.0
5.6.1
5.7.0
5.7.1
5.7.2
5.7.3
5.7.4
5.7.5
5.8.0
5.8.1
5.8.2
5.9.0
5.9.1
5.9.2
6.*
6.0.0
6.0.0-beta1
6.0.0-beta2
6.0.0-beta4
6.0.1
7.*
7.0.0
7.0.1
7.0.2
7.0.3
7.0.4
7.0.5
7.0.6
7.0.7
7.0.8
7.1.0
7.1.1
7.1.2
7.1.3
7.2.0
7.3.0
7.4.0
7.4.1
7.4.2
7.4.3
8.*
8.0.0
8.0.1
8.0.2
8.1.0
8.2.0
8.4.0
9.*
9.0.0
9.0.1
9.0.2
9.1.0
9.2.0
9.3.0
9.3.1
9.3.2
9.3.3
9.3.4
9.3.5
9.3.6
9.3.7
9.3.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55154.json"