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Public proof of conceptFix available

CVE-2026-73304

A public proof of concept exists; no exploitation attested.

  • Published2026-08-13
  • Fixed in3.39.25
  • WeaknessCWE-200

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-08-1322:17CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-73304?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-73304?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV
@budibase/server
BranchAffectedFixed in
3.39< 3.39.253.39.25

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update @budibase/server to 3.39.25

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2026-08-14
  • OpenCVESSVC decisionpoc—
  • CNACVSS 3.14.9read 2026-10-23
  • CNAweakness (CWE)CWE-200read 2026-10-23
  • FIRST EPSSEPSS score0.5 %2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Published
2026-08-13
Last Modified
2026-09-08
NVD status
Deferred

Frequently asked questions

What is CVE-2026-73304?

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.

Is CVE-2026-73304 actively exploited?

A proof-of-concept exploit exists for CVE-2026-73304, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-73304?

CVE-2026-73304 has a CVSS v3 base score of 4.9 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

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