CVE-2026-16753 Lowcoder CVE debrief

Who should care

Defenders and administrators of Lowcoder deployments, especially in multi-organization environments, should assess exposure and prioritize remediation. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify the affected scope, severity, and vendor guidance.

Why it matters

CVE-2026-16753 is an incorrect authorization vulnerability in Lowcoder that allows authenticated administrators or developers to execute library queries from another organization. Defenders should prioritize verifying and remediating this vulnerability, especially in multi-organization environments, to prevent potential unauthorized access and data exposure.

• Potential unauthorized access to library queries from other organizations
• Possible data exposure or manipulation in multi-organization environments
• Need for verification of Lowcoder version and deployment configuration
• Priority for remediation and monitoring in affected deployments

Technical summary

The vulnerability allows an authenticated administrator or developer in one organization to execute a library query belonging to another organization via a crafted request containing the victim library-query identifier in Lowcoder version up to and including 2.4.10. This incorrect authorization vulnerability can lead to unauthorized access to library queries, potentially resulting in data exposure or manipulation. Defenders should prioritize verifying and remediating this vulnerability, especially in multi-organization environments.

Defensive priority

Defenders should prioritize verifying and remediating this vulnerability in Lowcoder deployments, especially in multi-organization environments.

Recommended defensive actions

• Verify Lowcoder version and check if it is up to date
• Restrict access to library query execution endpoints
• Monitor for suspicious activity in multi-organization environments
• 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 source item provide details on the vulnerability, but additional information from the vendor and other sources may be necessary for comprehensive risk assessment. The vulnerability has been publicly disclosed and defenders should verify the affected scope, severity, and vendor guidance. Limited source detail is available, so defenders should exercise caution and consider the potential for data exposure or unauthorized access.

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.