CVE-2026-42604

Actual is a local-first personal finance tool. The `POST /openid/config` endpoint in Actual Budget's sync-server versions <= 26.4.0 exposes the full OpenID Connect configuration—including the OAuth2 `client_secret`—to any caller who knows the bootstrap password. The endpoint also lacks authentication and rate limiting, making the bootstrap password brute-forceable. Version 26.5.0 fixes the issue.

CVSS

No CVSS.

References

Link	Resource
https://actualbudget.org/blog/release-26.5.0
https://github.com/actualbudget/actual/security/advisories/GHSA-49v6-pqjq-xw55

Configurations

No configuration.

History

26 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Actual es una herramienta de finanzas personales de primera instancia local. El endpoint “POST /openid/config” en el servidor de sincronización de Actual Budget versiones menor o igual que 26.4.0 expone la configuración completa de OpenID Connect -incluyendo el “client_secret” de OAuth2- a cualquier llamador que conozca la contraseña de arranque. El endpoint también carece de autenticación y limitación de tasa, lo que hace que la contraseña de arranque sea susceptible de fuerza bruta. La versión 26.5.0 corrige el problema.

Information

Published : 2026-06-12 20:16

Updated : 2026-10-26 11:10

NVD link : CVE-2026-42604

Mitre link : CVE-2026-42604

CVE.ORG link : CVE-2026-42604

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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