CVE-2026-69263 FlowiseAI CVE debrief

Who should care

System administrators and developers using Flowise should assess their exposure and verify the version in use. They should also review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Additionally, they should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Why it matters

CVE-2026-69263 is a high-severity vulnerability in Flowise that allows for auto-installation and execution of packages. Defenders should prioritize updating Flowise to version 3.1.3 or later and assess their exposure.

• Verify Flowise version in use to determine exposure
• Update Flowise to version 3.1.3 or later to mitigate vulnerability
• Monitor for potential exploitation attempts

Technical summary

The vulnerability in Flowise allows for auto-installation and execution of packages via the npm_config_yes environment variable. This issue is fixed in version 3.1.3. The mitigation for CVE-2025-8943 blocked -y and --yes flags on npx, but packages/components/nodes/tools/MCP/core.ts denied only PATH, LD_LIBRARY_PATH, DYLD_LIBRARY_PATH, and NODE_OPTIONS by exact environment-variable name, leaving npm_config_yes unblocked. This allows attackers to exploit the vulnerability by setting npm_config_yes=true, which reproduces --yes behavior without using a blocked flag.

Defensive priority

Defenders should prioritize updating Flowise to version 3.1.3 or later to mitigate this vulnerability. System administrators and developers using Flowise should assess their exposure and verify the version in use.

Recommended defensive actions

• Update Flowise to version 3.1.3 or later
• Assess exposure and verify the version in use
• Monitor for potential exploitation 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, including its description, CVSS score, and references to source material. However, the corpus does not establish versions prior to 3.1.3 as affected or provide specific instances of exploitation. The vulnerability was publicly disclosed and fixed in version 3.1.3. There is no evidence of in-the-wild exploitation, but defenders should verify the version in use and assess their exposure.

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.