Langflow: IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote authenticated attacker to execute…
Langflow
More for Langflow RSS feed for Langflow
- Severity
- High, CVSS 8.8
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Record
- CVE-2026-18729
- Affects
- Langflow
- Known exploited
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Published
- Record first published by the source
- August 28, 2026
- Source last modified
- September 1, 2026
Description
IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote authenticated attacker to execute arbitrary code due to improper control of generation of code.
Description quoted from the NVD record.
Who is affected
Langflow (also called IBM Langflow OSS) is a tool for building apps that use AI language models. This flaw affects versions 1.0.0 through 1.11.1. Someone who can already log in to Langflow could exploit this flaw over a network to make Langflow run any code they choose on the computer where it is installed. This happens because a part of the product does not properly control the code it creates. This flaw is rated High.
What to do
- If your organization installed and runs Langflow itself, ask the person who set it up to check which version is in use. Versions 1.0.0 through 1.11.1 have this flaw.
- No fixed version is named for this flaw yet. That person should check the vendor advisory linked on this page for a fixed release and install it as soon as it is available.
- If an IT provider or vendor runs Langflow for your organization, send them this advisory and ask when the update will be done.
Analysis written from the source record as of September 1, 2026 and reviewed before publishing.