High severity8.5NVD Advisory· Published May 27, 2026· Updated May 27, 2026
CVE-2026-48153
CVE-2026-48153
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@budibase/servernpm | < 3.39.0 | 3.39.0 |
Affected products
2Patches
Vulnerability mechanics
References
3News mentions
1- Budibase: 18 CVEs Disclosed in Single Batch — Critical Auth Bypass and SSRF Flaws PatchedVypr Intelligence · May 27, 2026