CVE-2026-73300 Budibase CVE debrief

Who should care

Defenders responsible for Budibase deployments, especially those using MySQL integration, should assess exposure and verify patching to prevent potential database compromise. Operators of Budibase platforms, security teams, and vulnerability management teams should prioritize verifying deployments for exposure and ensure timely patching to version 3.40.0 or later. Platform administrators and security personnel should monitor for suspicious SQL activity in

Why it matters

CVE-2026-73300 is a critical vulnerability in Budibase's MySQL integration component, allowing SQL injection attacks. Defenders should verify exposure, prioritize patching, and monitor for suspicious activity to prevent database compromise.

• Verify Budibase deployments for exposure to prevent potential database compromise.
• Ensure timely patching of Budibase instances to version 3.40.0 or later.
• Monitor for suspicious SQL activity in Budibase deployments.

Technical summary

The Budibase MySQL integration component was configured with multipleStatements: true, allowing execution of multiple SQL statements in a single query. Attackers could inject malicious SQL commands through user input fields, potentially leading to complete database compromise. This vulnerability was fixed in version 3.40.0. Affected deployments using MySQL integration should be verified for exposure and updated to prevent potential database compromise. Defenders should prioritize verifying Budibase deployments, especially those using MySQL integration, and ensure they are updated to version 3.40.0 or later.

Defensive priority

Defenders should prioritize verifying Budibase deployments for exposure, especially those using MySQL integration, and ensure they are updated to version 3.40.0 or later.

Recommended defensive actions

• Verify Budibase deployments for exposure, especially those using MySQL integration.
• Ensure Budibase instances are updated to version 3.40.0 or later.
• Monitor Budibase deployments for suspicious SQL activity.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, its impact, and the fix in version 3.40.0. However, specific details about affected deployments, exploitation, or data breaches are not provided.

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.