---
id: CVE-2026-81268
title: >-
  IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated
  attacker to execute flows and obtain sensitive information due to insufficient
  session expiration of API keys after user deactivation.
summary: >-
  IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated
  attacker to execute flows and obtain sensitive information due to insufficient
  session expiration of API keys after user deactivation.
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-613
vendor: langflow
product: langflow
affected:
  - 'langflow >= 1.0.0, < 1.11.6'
patched:
  - langflow 1.11.6
published: '2026-09-10'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T00:58:26.763'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81268'
references:
  - url: 'https://www.ibm.com/support/pages/node/7286662'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00433
epssPercentile: 0.35003
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-11T00:00:00+00:00'
ingestedAt: '2026-09-14T15:23:07.483Z'
---

## Overview

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation.

## Affected

- `langflow >= 1.0.0, < 1.11.6`

## Remediation

Upgrade past the affected range:

- `langflow 1.11.6`