What is CVE-2026-50137?

CVE-2026-50137 is a critical-severity vulnerability in Budibase, classified under Missing Authorization. CVSS score: 9.4/10. Published 2026-06-26.

How severe is CVE-2026-50137?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Auth bypass in Budibase

CVE-2026-50137

Budibase is an open-source low-code platform. Prior to 3.39.0, an anonymous attacker who knows or can enumerate a workspace id (app_...) and an S3-source datasource id (ds_...) can call this endpoint with no auth and obtain a 15-minute pre…

Vulnerability class: Broken Access Control

EPSS: 0.003 (22.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Budibase — versions < 3.39.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-50137?: CVE-2026-50137 is a critical-severity vulnerability in Budibase, classified under Missing Authorization. CVSS score: 9.4/10. Published 2026-06-26.
How severe is CVE-2026-50137?: Critical severity. CVSS v3 base score is 9.4 out of 10.