TI-2026-35587 Aliases CVE-2026-48151 GHSA-qhv3-wjg8-6fx6

Budibase: Webhook schema endpoint authorization bypass allows unauthenticated mutation of webhook and automation schema

HIGH 72CWE-862Published 2026-05-27 · Updated 2026-05-28

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.

Summary

Budibase is an open-source low-code platform. Prior to 3.39.0, the webhook schema-building endpoint is registered under builderRoutes, but the generic authorization middleware skips authorization for all paths matching /api/webhooks/schema. As a result, an unauthenticated caller can update the body schema for a known webhook and mutate the corresponding automation trigger output schema. This vulnerability is fixed in 3.39.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00224 13th percentileScored 2026-11-07

Fix Fixed budibase (Budibase): 3.39.0@budibase/server (npm): 3.39.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Budibase	budibase	before 3.39.0	3.39.0	Patch available	CNA
—	@budibase/server (npm)	before 3.39.0	3.39.0	Patch available	GHSA-qhv3-wjg8-6fx6

budibase VendorBudibase Affected before 3.39.0 Fixed in 3.39.0 Patch available CNA
@budibase/server (npm) Vendor— Affected before 3.39.0 Fixed in 3.39.0 Patch available GHSA-qhv3-wjg8-6fx6

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:budibase:budibase::::::::	—	—	Budibase

cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:* Versions — — ·Budibase

Remediation

Fix · CNA budibase (Budibase) Fixed in 3.39.0
Fix · GHSA-qhv3-wjg8-6fx6 @budibase/server (npm) Fixed in 3.39.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-48151
2026-10-03 Alias added: GHSA-qhv3-wjg8-6fx6

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-48151

Other 2

TI-2026-39242 Budibase: Anonymous NoSQL operator injection via published-app query templates CVSS 3.1CRITICAL 10.0
TI-2026-51076 Budibase before 3.40.0 SQL Injection via Unauthenticated Webhook CVSS 4.0CRITICAL 9.0
TI-2026-24369 Budibase Universal Auth Bypass via Webhook Query Param Injection CVSS 3.1CRITICAL 9.1
TI-2026-56709 Budibase before 3.41.3 Remote Code Execution via Plugin eval() CVSS 4.0CRITICAL 9.4
TI-2026-51425 Budibase: SQL Injection via `multipleStatements: true` CVSS 3.1CRITICAL 9.6
TI-2026-51075 Budibase before 3.40.0 Arbitrary File Write via Path Traversal CVSS 4.0CRITICAL 9.4

See all 90 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences