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VULNERABILITIES

CVE-2026-42604 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://actualbudget.org/blog/release-26.5.0 [email protected]Release NotesVendor
https://github.com/actualbudget/actual/security/advisories/GHSA-49v6-pqjq-xw55 [email protected]AdvisoryRemedyVendor

Weakness Enumeration

CWE-IDCWE NameSource
CWE-863Incorrect Authorization[email protected]

Affected Products

ProductVersions
Actual Budget
<= 26.4.0 (semver)

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • Upgrade: 26.5.0moderate effort

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-42604
NVD Published Date:
Jun 12, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-42604 Details - Not Deferred