CVE-2026-73301 Budibase CVE debrief

Who should care

Defenders responsible for Budibase deployments should assess exposure and prioritize updating to version 3.39.25 or later. This vulnerability may impact tenants who have not updated their Budibase instances.

Why it matters

CVE-2026-73301 allows authenticated BASIC role users to enumerate sensitive tenant information in Budibase deployments prior to version 3.39.25. Defenders should verify their deployments and update to the fixed version to prevent potential exposure.

• Potential enumeration of sensitive tenant information
• Exposure of tenant access-control structure
• Verification of Budibase version and patching status required

Technical summary

CVE-2026-73301 is a vulnerability in the Budibase low-code platform that allows authenticated BASIC role users to enumerate sensitive tenant information, including groups, role mappings, and user memberships. The issue is due to an authentication bypass in the GET /api/global/groups endpoint. This vulnerability has a CVSS score of 4.3 and is classified as MEDIUM severity. The vulnerability allows authenticated BASIC role users to enumerate sensitive tenant data. Defenders should prioritize verifying Budibase deployments and updating to version 3.39.25 if vulnerable. The issue is fixed in version 3.39.25.

Defensive priority

Defenders should prioritize verifying Budibase deployments and updating to version 3.39.25 if vulnerable.

Recommended defensive actions

• Verify Budibase deployments for version 3.39.25 or later
• Restrict access to the GET /api/global/groups endpoint
• Monitor for potential enumeration attempts
• 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 and its fix. However, additional information on potential exploitation or impact is limited. Defenders should verify Budibase deployments and update to the fixed version to prevent potential exposure. The CVE Program record and NVD entry provide source-provided CVE metadata and official vulnerability assessment. Budibase deployments should be verified for version 3.39.25 or later. The vulnerability allows authenticated BASIC role users to enumerate sensitive tenant data

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.