CVE-2026-70475 FlowiseAI CVE debrief

Who should care

Flowise users and administrators should assess their exposure and verify that the patch has been applied to prevent potential privilege escalation attacks. They should also monitor for suspicious activity related to execution state, data, and metadata modifications. Additionally, security teams and vulnerability management teams should review the vulnerability details and plan for remediation efforts.

Why it matters

CVE-2026-70475 is a high-severity vulnerability in Flowise that allows authenticated users to escalate privileges and manipulate workflow execution results. Defenders should prioritize patching to version 3.1.3 and monitoring for suspicious activity.

• Potential privilege escalation for authenticated users
• Manipulation of workflow execution results
• Modification of execution state, data, and metadata

Technical summary

The PUT /api/v1/executions/:id endpoint in Flowise packages/server/src/routes/executions/index.ts lacks the checkAnyPermission() middleware, allowing any authenticated user to modify execution state, data, and metadata of any execution in their workspace. This enables privilege escalation and manipulation of workflow execution results. The issue is fixed in version 3.1.3. Users should review and apply the patch to prevent potential attacks. The vulnerability has a high severity with a CVSS score of 7.1 and HIGH severity rating.

Defensive priority

High

Recommended defensive actions

• Review and apply the patch (version 3.1.3) to prevent privilege escalation
• Verify that the checkAnyPermission() middleware is properly implemented for execution endpoints
• Monitor for any suspicious activity related to execution state, data, and metadata modifications
• 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. The vendor, FlowiseAI, has released a patch (version 3.1.3) and provided additional information through their GitHub repository. The vulnerability allows any authenticated user, regardless of assigned permissions, to modify execution state, data, and metadata of any execution in their workspace. This issue enables privilege escalation and manipulation of workflow execution results. Defenders should verify the patch has been applied and monitor for suspicious activity.

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.