CVE-2026-9673: CSV Injection in json-2-csv
Versions of the package json-2-csv from 3.15.0 and before 5.5.11 are vulnerable to CSV Injection via the preventCsvInjection option which can be bypassed. An attacker can inject formulas into CSV files, which execute when the files are opened in spreadsheet applications.
AI Analysis
Technical Summary
The json-2-csv package contains a CSV Injection vulnerability identified as CVE-2026-9673. Versions from 3.15.0 and before 5.5.11 are affected because the preventCsvInjection option, intended to mitigate formula injection, can be bypassed. This vulnerability enables an attacker to insert formulas into CSV output that execute upon opening the file in spreadsheet software, potentially leading to unintended command execution or data manipulation.
Potential Impact
An attacker can craft CSV files with embedded formulas that execute automatically when opened in spreadsheet applications, potentially leading to unauthorized actions or data compromise. The vulnerability has a CVSS 4.0 score of 7 (high severity), indicating significant risk if exploited. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is indicated, users should monitor vendor communications for updates. Until a fix is available, avoid processing untrusted CSV data with vulnerable versions or apply manual sanitization of CSV content to prevent formula injection.
CVE-2026-9673: CSV Injection in json-2-csv
Description
Versions of the package json-2-csv from 3.15.0 and before 5.5.11 are vulnerable to CSV Injection via the preventCsvInjection option which can be bypassed. An attacker can inject formulas into CSV files, which execute when the files are opened in spreadsheet applications.
CVSS v4.0
Score 7.0high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The json-2-csv package contains a CSV Injection vulnerability identified as CVE-2026-9673. Versions from 3.15.0 and before 5.5.11 are affected because the preventCsvInjection option, intended to mitigate formula injection, can be bypassed. This vulnerability enables an attacker to insert formulas into CSV output that execute upon opening the file in spreadsheet software, potentially leading to unintended command execution or data manipulation.
Potential Impact
An attacker can craft CSV files with embedded formulas that execute automatically when opened in spreadsheet applications, potentially leading to unauthorized actions or data compromise. The vulnerability has a CVSS 4.0 score of 7 (high severity), indicating significant risk if exploited. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is indicated, users should monitor vendor communications for updates. Until a fix is available, avoid processing untrusted CSV data with vulnerable versions or apply manual sanitization of CSV content to prevent formula injection.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- snyk
- Date Reserved
- 2026-05-27T05:35:32.761Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a17daeae29bf47b50b180ec
Added to database: 05/28/2026, 06:04:26 UTC
Last enriched: 07/29/2026, 21:25:06 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 119
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