What is CVE-2026-50136?

CVE-2026-50136 is a high-severity vulnerability in Budibase, classified under Missing Authentication for Critical Function. CVSS score: 7.4/10. Published 2026-06-26.

How severe is CVE-2026-50136?

High severity. CVSS v3 base score is 7.4 out of 10.

Auth bypass in Budibase

CVE-2026-50136

Budibase is an open-source low-code platform. Prior to 3.39.3, the application server exposes an unauthenticated endpoint that generates S3 PutObject presigned URLs using credentials stored in a workspace datasource. The route is protected…

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.

Affected products

Budibase — versions < 3.39.3

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-50136?: CVE-2026-50136 is a high-severity vulnerability in Budibase, classified under Missing Authentication for Critical Function. CVSS score: 7.4/10. Published 2026-06-26.
How severe is CVE-2026-50136?: High severity. CVSS v3 base score is 7.4 out of 10.