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Advisories

Budibase before 3.40.0 DNS Rebinding SSRF via OpenAPI and REST

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severity
high
date
Affecting

  • server >= 0, < 3.40.0

CWE
  • CWE-918 Server-Side Request Forgery (SSRF)
CVSS
8.4
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Credit
DavidCarliez
Description
Budibase before 3.40.0 contains server-side request forgery vulnerabilities in OpenAPI query import and REST query execution that allow authenticated builder-level users to bypass DNS pinning protections through DNS rebinding attacks. Attackers can configure hostnames that resolve to public addresses during validation but resolve to loopback or private addresses during actual connection, allowing access to blocked internal HTTP services.

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