What is CVE-2026-48147?

CVE-2026-48147 is a medium-severity vulnerability in Budibase, classified under Incorrect Regular Expression. CVSS score: 6.5/10. Published 2026-05-27.

How severe is CVE-2026-48147?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CSRF in Budibase

CVE-2026-48147

Budibase is an open-source low-code platform. Prior to 3.35.4, the buildMatcherRegex() / matches() functions in packages/backend-core/src/middleware/matchers.ts route patterns are compiled into unanchored regular expressions and tested aga…

EPSS: 0.000 (2.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Budibase — versions < 3.35.4

Weakness classification (CWE)

CWE-185 — Incorrect Regular Expression
CWE-352 — Cross-Site Request Forgery (CSRF)

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-48147?: CVE-2026-48147 is a medium-severity vulnerability in Budibase, classified under Incorrect Regular Expression. CVSS score: 6.5/10. Published 2026-05-27.
How severe is CVE-2026-48147?: Medium severity. CVSS v3 base score is 6.5 out of 10.