CVE-2026-27638

7.1 HIGH
Published: February 26, 2026 Modified: February 27, 2026
View on NVD

Description

Actual is a local-first personal finance tool. Prior to version 26.2.1, in multi-user mode (OpenID), the sync API endpoints (`/sync/*`) don't verify that the authenticated user owns or has access to the file being operated on. Any authenticated user can read, modify, and overwrite any other user's budget files by providing their file ID. Version 26.2.1 patches the issue.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/actualbudget/actual/releases/tag/v26.2.1
Source: security-advisories@github.com
Product Release Notes
https://github.com/actualbudget/actual/security/advisories/GHSA-qmjj-p7m9-wjrv
Source: security-advisories@github.com
Exploit Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.1 / 10.0
EPSS (Exploit Probability)
0.0%
8th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

actualbudget