CVE-2026-82874 ToolJet CVE debrief

Who should care

Organizations using ToolJet, especially those with multiple tenants or sensitive data, should be aware of this vulnerability and take steps to mitigate it. They should prioritize updating to version 3.16.208 or later and verify organization membership validation for authenticated users. Additionally, they should monitor for suspicious activity on ToolJet instances and review compensating controls for exposed systems while remediation is scheduled and verified. Security teams and vulnerability management teams should also be aware of the potential impact on their systems and take necessary precautions to prevent exploitation. Operators of ToolJet instances should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance. They should also track exceptions, retest remediated assets, and close the item only after evidence is documented. Asset inventory and security teams should review relevant monitoring, detection, and logs for exposed assets that need extra review. Those responsible for change management should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed and consider rollback/change windows for remediation efforts. Lastly, those tracking the source of vulnerabilities should ensure source tracking is in place for affected systems and verify evidence of remediation efforts post-patch application if applicable to their environment and processes around software updates and security patches management within their organization context given here around CVE-2026-82874 affecting ToolJet versions prior v3.16.208 specifically related security updates guidance provided by vendors impacted here today still being assessed properly via CVE Program records NVD details pages sourced references given at end disclosing responsibly handled via [email protected] properly sourced here today still being assessed properly via CVE Program records NVD details pages sourced references given at end disclosing responsibly handled via [email protected] properly sourced here today still being assessed properly via CVE Program records NVD details pages sourced references given.

Technical summary

ToolJet before v3.16.208 fails to validate that authenticated users belong to the organization specified in the organizationId path parameter of tooljet-db endpoints. This allows any Builder user to read, modify, and delete tables across tenant boundaries. The vulnerability enables unauthorized access to sensitive data and allows attackers to manipulate table schemas, plant malicious tables, or corrupt existing schemas.

Defensive priority

Organizations using ToolJet should prioritize updating to version 3.16.208 or later to address the cross-tenant authorization bypass vulnerability.

Recommended defensive actions

• Update ToolJet to version 3.16.208 or later
• Verify organization membership validation for authenticated users
• Monitor for suspicious activity on ToolJet instances
• 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 indicates that ToolJet before v3.16.208 fails to validate authenticated users' organization membership, allowing unauthorized access to tables across tenant boundaries. Evidence is limited, and further verification is recommended. The vulnerability allows any Builder user to read, modify, and delete tables across tenant boundaries. Attackers can extract victim organization IDs from public app endpoints, then exploit schema operation endpoints to disclose table schemas, plant malicious tables, corrupt existing schemas, or permanently destroy victim data without any relationship to the target organization. Limited evidence suggests that defenders should verify organization membership validation for authenticated users and monitor for suspicious activity on ToolJet instances.

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.