---
id: CVE-2026-57449
title: Actual is a local-first personal finance tool
summary: >-
  Actual is a local-first personal finance tool. Prior to 26.7.0, Actual Sync
  Server's CORS proxy is intended to let authenticated users fetch resources
  only from repositories listed in the official plugin allowlist. When
  `ACTUAL_GITHUB_TO…
severity: high
cvss: 7.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-200
  - CWE-284
  - CWE-863
vendor: actualbudget
product: actual
affected:
  - actual < 26.7.0
published: '2026-09-25'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T14:17:16.140'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-57449'
references:
  - url: >-
      https://github.com/actualbudget/actual/security/advisories/GHSA-m62c-5q34-f3cf
    label: security-advisories@github.com
  - url: >-
      https://github.com/actualbudget/actual/security/advisories/GHSA-m62c-5q34-f3cf
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-57449'
  - url: 'https://github.com/advisories/GHSA-m62c-5q34-f3cf'
tags:
  - nvd
  - cve.org
  - exploit-available
  - ghsa
  - npm
epss: 0.00258
epssPercentile: 0.17347
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-28T13:07:03.977402Z'
cvssSource: cna
ingestedAt: '2026-09-25T23:21:16.955Z'
aliases:
  - GHSA-m62c-5q34-f3cf
ecosystem: npm
patched:
  - '@actual-app/sync-server 26.7.0'
---

## Overview

Actual is a local-first personal finance tool. Prior to 26.7.0, Actual Sync Server's CORS proxy is intended to let authenticated users fetch resources only from repositories listed in the official plugin allowlist. When `ACTUAL_GITHUB_TOKEN` is configured, the proxy automatically attaches the server's GitHub token to GitHub requests. The GitHub API allowlist check uses a raw `startsWith()` prefix test for `/repos/{owner}/{repo}` without requiring a path boundary after the repository name. If an allowlisted public plugin repository is `https://github.com/acme/plugin`, the proxy also accepts GitHub API URLs. Those URLs are outside the allowlisted repository but still pass because their API path starts with `/repos/acme/plugin`. The proxy then forwards the request with the server's `ACTUAL_GITHUB_TOKEN`, allowing any authenticated Actual user to read private GitHub resources reachable by that token. Version 26.7.0 fixes the issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-57449)

Affected packages:

- `@actual-app/sync-server <= 26.6.0`

Patched in:

- `@actual-app/sync-server 26.7.0`

Source: https://github.com/advisories/GHSA-m62c-5q34-f3cf