---
title: "CVE-2026-100610: Flowise - Broken Access Control"
description: "Flowise through 3.1.4 contains a broken access control vulnerability caused by missing route-level permission and ownership validation in /api/v1/upsert-history endpoints, letting authenticated low-privilege users or valid API keys read or delete other users' upsert history, exploit requires knowledge of target chatflowId or record UUIDs."
url: https://panop.io/threat-heartbeat/CVE-2026-100610/
---

# CVE-2026-100610 Flowise - Broken Access Control

Flowise through 3.1.4 contains a broken access control vulnerability caused by missing route-level permission and ownership validation in /api/v1/upsert-history endpoints, letting authenticated low-privilege users or valid API keys read or delete other users' upsert history, exploit requires knowledge of target chatflowId or record UUIDs.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.27% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-100610)

## Details

Type

Broken Access Control

Impact

Information Disclosure, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

26 September 2026

Updated

15 October 2026

Weakness

[CWE-639](https://cwe.mitre.org/data/definitions/639.html)

## Vendor fix

Update to the latest version once a patch is available or implement proper route-level permission and ownership validation.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-100610](https://nvd.nist.gov/vuln/detail/CVE-2026-100610)
- [https://www.vulncheck.com/advisories/flowise-through-3.1.4-missing-authorization-via-upsert-history](https://www.vulncheck.com/advisories/flowise-through-3.1.4-missing-authorization-via-upsert-history)
- [https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-jvx3-mjpw-r4gh](https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-jvx3-mjpw-r4gh)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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