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CVE-2026-27584

ActualBudget server is Missing Authentication for SimpleFIN and Pluggy AI bank sync endpoints

Published: Feb 24, 2026Updated: Feb 26, 2026 Sources: CVE List NVD GHSACWE-306
7.5HIGH
NVD MITRE
EPSS Score
0.4%
Top 67.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-306

Affected Products

actualbudget
actualOn-prem
Consumer Software / productivity
npm
package-ecosystem
@actual-app/sync-server
OSS Libraries

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/actualbudget/actual/commit/ea937d100956ca56689ff852d99c28589e2a7d88
github.com
https://github.com/actualbudget/actual/security/advisories/GHSA-m2cq-xjgm-f668
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-27584
nvd.nist.gov
and 1 more references View all →

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