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

> Attackers can inject malicious formulas into CSV exports from the Actual CLI, leading to code execution or data exfiltration when opened in spreadsheet software.

- **Severity:** Medium 4.6 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 7 Jul 2026
- **Updated:** 8 Jul 2026
- **Also known as:** GHSA-7gh7-258j-4mpq

## What is CVE-2026-46672?

CVE-2026-46672 is a medium-severity vulnerability in actualbudget actual, published on 7 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-1236 (Improper Neutralization of Formula Elements in a CSV File)

## Which versions are affected by CVE-2026-46672?

2 open source packages ship an affected version, including @actual-app/cli.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@actual-app/cli` | npm | All versions | 26.6.0 |
| `@actual-app/cli` | npm | All versions | 26.6.0 |

## How do I fix CVE-2026-46672?

Upgrade @actual-app/cli to 26.6.0 or later.

## Is CVE-2026-46672 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46672 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-46672 and fix it if it is affected.

What it is: CVE-2026-46672 is a medium-severity vulnerability in actualbudget actual, published on 7 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46672 exists.

Affected packages and fixed versions:
- @actual-app/cli (npm): affected all versions; fixed in 26.6.0
- @actual-app/cli (npm): affected all versions; fixed in 26.6.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-46672/ (Markdown: https://insights.sbomify.com/CVE-2026-46672/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-46672
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-46672
- OSV: https://osv.dev/vulnerability/CVE-2026-46672

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-46672/
Summaries are generated and may contain mistakes; the official description above is the record.