5.0Medium

Langflow Langflow

CVE-2026-17631

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information due to a server-side request forgery (SSRF) vulnerability.

What this means for your business

  • It affects Langflow. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.

What to do

  1. 1Check whether your company or your suppliers run Langflow, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Scoring

CVSS
5.0 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Weakness
CWE-918
Assigned by
psirt@us.ibm.com

Dates

Published
2026-09-04
Last modified
2026-09-09
Sources
NVD

Affected products

  • Langflow Langflow1.0.0 - 1.10.3
  • Apple Macosall versions
  • Linux Linux Kernelall versions
  • Microsoft Windowsall versions

As listed in the NVD configuration data. Not a statement about your estate.

References