CVE-2026-73304

MEDIUM 4.9

Budibase: SSO OAuth2 Token Leakage via User Metadata Endpoints to Power-Role Users

CVSS Score

4.9

EPSS Score

0.0%

EPSS Percentile

0th

Budibase is an open-source low-code platform. Prior to 3.39.25, GET /api/users/metadata and GET /api/users/metadata/:id returned user objects processed by packages/server/src/utilities/global.ts without removing oauth2.accessToken or oauth2.refreshToken. A user with the POWER role could retrieve the identity-provider credentials of SSO-authenticated users and use the refresh tokens for persistent access to connected services. This issue is fixed in version 3.39.25.

CWE	CWE-200
Vendor	budibase
Product	budibase
Published	Aug 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

Budibase / budibase

< 3.39.25

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/Budibase/budibase/security/advisories/GHSA-fcrw-f7gg-6g9f github.com: https://github.com/Budibase/budibase/pull/19110 github.com: https://github.com/Budibase/budibase/commit/80a31f6c3354620aa90e50af8a2c614333084621 github.com: https://github.com/Budibase/budibase/releases/tag/3.39.25