CVE-2026-82243 budibase CVE debrief

Who should care

Budibase Server administrators and users, especially those with builder-level access, should be aware of this vulnerability. Security teams monitoring for potential SSRF attacks and credential leakage should also prioritize this issue. Additionally, organizations using Budibase Server in cloud environments are at higher risk due to the potential for full database access if exploited.

Technical summary

CVE-2026-82243 is a high-severity vulnerability in Budibase Server versions before 3.41.3. The vulnerability exists in the datasource verify endpoint and allows builder-level users to supply arbitrary URLs without proper SSRF validation. This could be exploited to leak internal CouchDB credentials by making requests to attacker-controlled servers. In cloud deployments, this could lead to full database access.

Defensive priority

Budibase Server before 3.41.3 contains a server-side request forgery vulnerability in the datasource verify endpoint that allows builder-level users to supply arbitrary URLs without SSRF validation. This issue requires immediate attention to prevent potential credential leakage.

Recommended defensive actions

• Inventory Budibase Server instances and verify versions are up-to-date or patched.
• Restrict datasource verify endpoint access to minimize exposure.
• Implement additional monitoring for suspicious datasource verify endpoint activity.
• Consider compensating controls like web application firewalls.
• Review and update incident response plans for potential SSRF attacks.

Evidence notes

The CVE-2026-82243 record indicates a high-severity vulnerability in Budibase Server before version 3.41.3. The issue is a server-side request forgery vulnerability in the datasource verify endpoint, allowing builder-level users to supply arbitrary URLs without SSRF validation. This could lead to internal CouchDB credential leakage by making requests to attacker-controlled servers, particularly gaining full database access in cloud deployments.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.