Medium 5.7Published Aug 12, 2026

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

Updated under an hour ago (2026-10-19 10:10 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.7 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Budibase budibase budibase:budibase (from the name)	before 3.39.25	CNA record

References

https://github.com/Budibase/budibase/security/advisories/GHSA-gh4h-34gr-87r7x-refsource-confirm
https://github.com/Budibase/budibase/pull/19107x-refsource-misc
https://github.com/Budibase/budibase/commit/bca426de7dc36d680285295655dc640dea2aab21x-refsource-misc
https://github.com/Budibase/budibase/releases/tag/3.39.25x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.