CVE-2026-73307

Budibase: SSRF via bare fetch() in uploadUrl during AI table generation

Published Aug 12, 2026 CVSS 4.0 · 4.9 Medium EPSS < 1% KEV · Not listed
Description
Budibase is an open-source low-code platform. Prior to 3.39.4, uploadUrl in packages/server/src/utilities/fileUtils.ts used a bare server-side fetch for string attachment values passed by processAttachments in packages/server/src/sdk/workspace/ai/helpers/rows.ts. A builder with the AI table-generation feature could cause an attachment value to reference an internal service or cloud metadata endpoint, and the response would be stored as an attachment without fetchWithBlacklist validation. This issue is fixed in version 3.39.4.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-hfhx-w8p8-4hc7 Budibase: SSRF via bare fetch() in uploadUrl during AI table generation
History
Type Values Removed Values Added
First Time appeared Budibase
Budibase budibase
Vendors & Products Budibase
Budibase budibase
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Budibase is an open-source low-code platform. Prior to 3.39.4, uploadUrl in packages/server/src/utilities/fileUtils.ts used a bare server-side fetch for string attachment values passed by processAttachments in packages/server/src/sdk/workspace/ai/helpers/rows.ts. A builder with the AI table-generation feature could cause an attachment value to reference an internal service or cloud metadata endpoint, and the response would be stored as an attachment without fetchWithBlacklist validation. This issue is fixed in version 3.39.4.
Title Budibase: SSRF via bare fetch() in uploadUrl during AI table generation
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 4.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 12, 2026, 7:46 PM
Reserved
Aug 11, 2026, 7:42 PM
Status
Deferred
Published
Aug 12, 2026, 8:17 PM
Modified
Sep 8, 2026, 8:56 PM