CVE-2026-27584

CRITICAL EPSS 31.4%
Published Feb 24, 20264mo ago · Modified Feb 26, 20264mo ago
9.2 CVSS 4.0
Critical
Find Similar
Published Feb 24, 2026 4mo ago
Last Modified Feb 26, 2026 4mo ago

Description

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.

CVSS Details

Base Score
9.2
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
31.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-306 Missing Authentication for Critical Function Authentication

Affected Products 1

VendorProductVersionRange
actualbudgetactual* <26.2.1

References 2

  • github.com https://github.com/actualbudget/actual/commit/ea937d100956ca56689ff852d99c28589e2a7d88
    Patch
  • github.com https://github.com/actualbudget/actual/security/advisories/GHSA-m2cq-xjgm-f668
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/actualbudget/actual/commit/ea937d100956ca56689ff852d99c28589e2a7d88
    Patch