PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-69251 FlowiseAI CVE debrief

CVE-2026-69251 Flowise AI Flowise drag & drop user interface to build a customized large language model flow 3.1.3. This critical vulnerability allows authenticated users to execute arbitrary code on the server by uploading a JavaScript payload and referencing it from additionalConfig.entities in Flowise record manager and agent memory nodes prior to version 3.1.3. Defenders should assess exposure, prioritize upgrading to version 3.1.3 or later, and monitor for potential exploitation attempts.

Vendor
FlowiseAI
Product
Flowise
CVSS
CRITICAL 9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-04
Original CVE updated
2026-09-08
Advisory published
2026-08-04
Advisory updated
2026-09-08

Who should care

Defenders responsible for Flowise AI Flowise deployments should assess exposure and prioritize upgrading to version 3.1.3 or later. Security teams and administrators should monitor for potential exploitation attempts and verify the integrity of their Flowise installations.

Why it matters

CVE-2026-69251 is a critical vulnerability in Flowise AI Flowise that allows authenticated users to execute arbitrary code on the server. Defenders should prioritize verifying and upgrading to Flowise version 3.1.3 or later, assessing exposure in Flowise deployments, and monitoring for potential exploitation attempts.

  • Authenticated users can execute arbitrary code on the server
  • Potential for code execution through uploaded JavaScript payloads
  • Exposure of Flowise deployments prior to version 3.1.3
  • Verification priority for Flowise version and deployment integrity

Technical summary

CVE-2026-69251 is a critical vulnerability in Flowise AI Flowise, a drag & drop user interface to build customized large language model flows. Prior to version 3.1.3, Flowise record manager and agent memory nodes allowed users to set arbitrary TypeORM DataSource options, enabling authenticated users to execute arbitrary code on the server by uploading a JavaScript payload and referencing it from additionalConfig.entities.

Defensive priority

Defenders should prioritize verifying and upgrading to Flowise version 3.1.3 or later, assessing exposure in Flowise deployments, and monitoring for potential exploitation attempts.

Recommended defensive actions

  • Verify Flowise version and upgrade to 3.1.3 or later
  • Assess exposure in Flowise deployments
  • 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 in Flowise AI Flowise, allowing authenticated users to execute arbitrary code on the server. Evidence is based on official CVE and NVD records, as well as a security advisory from Flowise AI.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-69251 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-69251

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-69251 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-69251

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental 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.