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CVE-2026-50179

Actual: CSV Formula Injection in Transaction Export via Imported Payee/Notes Fields

Published: Jul 7, 2026Updated: Jul 9, 2026 Sources: CVE List NVDCWE-1236
4.2MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 92.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-1236

Affected Products

actualbudget
actualOn-prem
Consumer Software / productivity

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://github.com/actualbudget/actual/security/advisories/GHSA-xqjm-27pc-rvwm
github.com
https://github.com/actualbudget/actual/commit/068185751c03b42e726e3c60b718413d5f96c306
github.com
https://github.com/actualbudget/actual/releases/tag/v26.6.0
github.com

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