CVE-2026-103757: Budibase server-side request forgery in AI table generation

CVE-2026-103757 · Severity: high · CVSS 7.7 · Published 2026-10-01

Budibase is a low-code application platform that allows users to build and manage database-driven applications. An authenticated attacker with builder privileges can exploit a server-side request forgery (SSRF) vulnerability in the AI table generation feature to fetch internal URLs and retrieve sensitive data such as cloud metadata credentials or access internal services. This allows an insider to bypass network protections and exfiltrate sensitive configuration or credentials.

Technologies: Budibase. Vendors: Budibase.

Quick answers

Is CVE-2026-103757 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-103757 being exploited in the wild.
How severe is CVE-2026-103757?
High severity, with a CVSS score of 7.7, published 1 October 2026.
Which products and versions are affected?
Budibase through 3.41.0.
Is there a fix for CVE-2026-103757?
Yes: fixed in Budibase 3.41.1 and later. Until then: Restrict builder role assignment to trusted users only and disable AI table generation if not needed. Network segmentation to prevent the application server from reaching internal services on private IP ranges (169.254.x.x, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) can limit credential theft if exploited. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103757 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-103757?
Check whether you run Budibase at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: Budibase 3.41.1 and later

Restrict builder role assignment to trusted users only and disable AI table generation if not needed. Network segmentation to prevent the application server from reaching internal services on private IP ranges (169.254.x.x, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) can limit credential theft if exploited.

Technical details

The uploadUrl function in packages/server/src/utilities/fileUtils.ts uses raw node-fetch without the SSRF-protective fetchWithBlacklist wrapper, enabling authenticated users to inject internal URLs via AI table generation prompts with attachment columns. The server fetches the URL, stores the response in object storage, and returns a presigned URL containing the response body, exposing metadata endpoints and internal services on private IP ranges.

Affected products

  • Budibase Budibase through 3.41.0

Timeline

  • 2026-09-17: disclosed: GitHub Security Advisory GHSA-3c52-v5v2-3r56 published
  • 2026-10-01: advisory: NVD CVE-2026-103757 entry

References

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