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.
History

Mon, 02 Mar 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 27 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:actualbudget:actual:*:*:*:*:*:node.js:*:*
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N'}


Fri, 27 Feb 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Actualbudget
Actualbudget actual
Vendors & Products Actualbudget
Actualbudget actual

Thu, 26 Feb 2026 22:30:00 +0000

Type Values Removed Values Added
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.
Title ActualBudget missing authorization in sync endpoints allows cross-user budget file access in multi-user mode
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 5.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-02-26T22:14:21.481Z

Updated: 2026-03-02T20:48:53.277Z

Reserved: 2026-02-20T22:02:30.029Z

Link: CVE-2026-27638

cve-icon Vulnrichment

Updated: 2026-03-02T20:48:50.439Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-26T23:16:34.807

Modified: 2026-02-27T17:03:28.260

Link: CVE-2026-27638

cve-icon Redhat

No data.