Webhook schema manipulation vulnerability in Budibase low-code platform
CVE-2026-48151

7.5HIGH

Key Information:

Vendor

Budibase

Status
Budibase
Vendor
CVE Published:
27 May 2026

What is CVE-2026-48151?

Budibase, a popular open-source low-code platform, contains a vulnerability in the webhook schema-building endpoint prior to version 3.39.0. The authorization middleware incorrectly handles requests made to paths matching /api/webhooks/schema. This flaw allows an unauthenticated attacker to alter the body schema of a known webhook, thereby modifying the output schema of its associated automation triggers. Users are advised to upgrade to version 3.39.0 or later to mitigate the risk associated with this vulnerability.

Affected Version(s)

budibase < 3.39.0

References

https://github.com/Budibase/budibase/security/advisories/...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.