GHSA-hfhx-w8p8-4hc7: Budibase: SSRF via bare fetch() in uploadUrl during AI table generation
(updated )
The uploadUrl() function in packages/server/src/utilities/fileUtils.ts uses a bare fetch(url) call without any SSRF protection. This function is invoked when the AI table generation feature processes LLM-generated attachment column values that are strings (URLs).
A builder-level user can craft prompts that cause the LLM to generate internal IP addresses or cloud metadata endpoints as attachment URLs. When generateRows() calls processAttachments(), these URLs are fetched server-side without blacklist validation, allowing the attacker to reach internal services, cloud metadata APIs (169.254.169.254), or other network-internal resources.
This is a variant of the same class of issue addressed in other Budibase code paths where fetchWithBlacklist() is correctly used to prevent SSRF.
References
- github.com/Budibase/budibase/commit/72e602d68daeebe3b95b0ed87acd351a38e327d7
- github.com/Budibase/budibase/pull/18866
- github.com/Budibase/budibase/releases/tag/3.39.4
- github.com/Budibase/budibase/security/advisories/GHSA-hfhx-w8p8-4hc7
- github.com/advisories/GHSA-hfhx-w8p8-4hc7
- nvd.nist.gov/vuln/detail/CVE-2026-73307
Code Behaviors & Features
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