---
id: CVE-2026-17627
title: >-
  IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated
  attacker to obtain sensitive information and inject messages into workflow
  history due to improper authorization.
summary: >-
  IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated
  attacker to obtain sensitive information and inject messages into workflow
  history due to improper authorization.
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-639
vendor: langflow
product: langflow
affected:
  - 'langflow >= 1.0.0, < 1.10.3'
patched:
  - langflow 1.10.3
published: '2026-09-04'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T15:05:03.137'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-17627'
references:
  - url: 'https://www.ibm.com/support/pages/node/7286294'
    label: psirt@us.ibm.com
tags:
  - nvd
epss: 0.00199
epssPercentile: 0.08588
ingestedAt: '2026-09-08T15:33:26.963Z'
---

## Overview

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information and inject messages into workflow history due to improper authorization.

## Affected

- `langflow >= 1.0.0, < 1.10.3`

## Remediation

Upgrade past the affected range:

- `langflow 1.10.3`