What is CVE-2026-31818?

CVE-2026-31818 is a critical-severity vulnerability in Budibase, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.6/10. Published 2026-04-03.

How severe is CVE-2026-31818?

Critical severity. CVSS v3 base score is 9.6 out of 10.

RCE in Budibase

CVE-2026-31818

Budibase is an open-source low-code platform. Prior to version 3.33.4, a server-side request forgery (SSRF) vulnerability exists in Budibase's REST datasource connector. The platform's SSRF protection mechanism (IP blacklist) is rendered c…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.

Affected products

Budibase — versions < 3.33.4

Weakness classification (CWE)

References

https://github.com/Budibase/budibase/security/advisories/GHSA-7r9j-r86q-7g45 (x_refsource_CONFIRM)
https://github.com/Budibase/budibase/pull/18236 (x_refsource_MISC)
https://github.com/Budibase/budibase/commit/5b0fe83d4ece52696b62589cba89ef50cc009732 (x_refsource_MISC)
https://github.com/Budibase/budibase/releases/tag/3.33.4 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-31818?: CVE-2026-31818 is a critical-severity vulnerability in Budibase, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.6/10. Published 2026-04-03.
How severe is CVE-2026-31818?: Critical severity. CVSS v3 base score is 9.6 out of 10.