CVE-2026-27584: Actualbudget Actual

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Actual is a local-first personal finance tool. Prior to version 26.2.1, missing authentication middleware in the ActualBudget server component allows any unauthenticated user to query the SimpleFIN and Pluggy.ai integration endpoints and read sensitive bank account balance and transaction information. This vulnerability allows an unauthenticated attacker to read the bank account balance and transaction history of ActualBudget users. This vulnerability impacts all ActualBudget Server users with the SimpleFIN or Pluggy.ai integrations configured. The ActualBudget Server instance must be reachable over the network. Version 26.2.1 patches the issue.

Affected products

• Actualbudget Actual: before 26.2.1 (fixed in 26.2.1)

Published 2026-02-24. Last modified 2026-06-17.