---
id: CVE-2026-17621
title: >-
  IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to
  traverse directories on the system
summary: >-
  IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to
  traverse directories on the system. An attacker could send a specially crafted
  URL request containing "dot dot " sequences ( /.. /) to view arbitrary files
  on the sys…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-22
vendor: langflow
product: langflow
affected:
  - 'langflow >= 1.0.0, < 1.10.3'
patched:
  - langflow 1.10.3
published: '2026-09-04'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T21:17:22.333'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-17621'
references:
  - url: 'https://www.ibm.com/support/pages/node/7286293'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T20:37:50.537359Z'
epss: 0.00293
epssPercentile: 0.19492
ingestedAt: '2026-09-08T15:33:26.963Z'
---

## Overview

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot " sequences ( /.. /) to view arbitrary files on the system.

## Affected

- `langflow >= 1.0.0, < 1.10.3`

## Remediation

Upgrade past the affected range:

- `langflow 1.10.3`