What is the CVSS score of CVE-2026-27584?

CVE-2026-27584 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Actual are affected by CVE-2026-27584?

CVE-2026-27584 affects Actual, a local-first personal finance tool used by employees for personal financial management.. A patch is available.

Is there a public PoC exploit available for CVE-2026-27584?

Yes, a public proof-of-concept exploit is available for CVE-2026-27584. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-27584?

Within 24 hours: Identify all systems running Actual and assess usage scope across the organization. Within 7 days: Deploy available vendor patch to all affected instances; communicate mandatory update requirements to end users. Within 30 days: Verify patch deployment completion through vulnerability scanning and document remediation in change management system.

Actual CVE-2026-27584

HIGH

Missing Authentication for Critical Function (CWE-306)

2026-02-24 security-advisories@github.com

GHSA-m2cq-xjgm-f668

Authentication Bypass Information Disclosure Actual Actualbudget

7.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 26, 2026 - 19:46 vuln.today

Public exploit code

Patch released

Feb 26, 2026 - 19:46 nvd

Patch available

CVE Published

Feb 24, 2026 - 15:21 nvd

HIGH 7.5

DescriptionGitHub Advisory

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.

AnalysisAI

Actual is a local-first personal finance tool. [CVSS 7.5 HIGH]

Technical ContextAI

Classified as CWE-306 (Missing Authentication for Critical Function). Affects the ActualBudget server component of Actual. 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 t