CVE-2026-45715: Budibase: SSRF Bypass via HTTP Redirect in REST Datasource Integration

Severity: high (CVSS 7.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-27 · updated 2026-06-17
Weakness: CWE-918

Description

Budibase is an open-source low-code platform. Prior to 3.38.1, the REST datasource integration (packages/server/src/integrations/rest.ts) follows HTTP redirects without re-checking the IP blacklist, allowing an authenticated Builder to access internal services (cloud metadata, databases) by redirecting through an attacker-controlled server. This vulnerability is fixed in 3.38.1.

Affected products

budibase: before 3.38.1

References

https://github.com/Budibase/budibase/releases/tag/3.38.1
https://github.com/Budibase/budibase/security/advisories/GHSA-fgqv-jh4g-pvg2
https://github.com/Budibase/budibase/security/advisories/GHSA-fgqv-jh4g-pvg2

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