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Vulnerability record · CVE-2026-48153 · published 27 May 2026

CVE-2026-48153: Server-side request forgery (SSRF) vulnerability

Budibase is an open-source low-code platform. Prior to 3.39.0, fetchToken in the OAuth2 SDK makes a POST to a builder-supplied URL with plain node-fetch, skipping the blacklist.isBlacklisted check that every other outbound fetch path in the codebase uses. The Joi schema for the OAuth2 URL has no scheme or host restriction. This vulnerability is fixed in 3.39.0.

8.5 CVSS 3.1 High EPSS 0.29% · top 80.7% CWE-918 · Server-side request forgery (SSRF) Deferred
8.5CVSS 3.1 base score
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Budibase is an open-source low-code platform. Prior to 3.39.0, fetchToken in the OAuth2 SDK makes a POST to a builder-supplied URL with plain node-fetch, skipping the blacklist.isBlacklisted check that every other outbound fetch path in the codebase uses. The Joi schema for the OAuth2 URL has no scheme or host restriction. This vulnerability is fixed in 3.39.0.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

References

LinkTags
https://github.com/Budibase/budibase/security/advisories/GHSA-4q6h-8p4v-67vq
https://github.com/Budibase/budibase/security/advisories/GHSA-4q6h-8p4v-67vq

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-48153), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.