Langflow: IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to delete…
Langflow
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- Severity
- High, CVSS 8.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Record
- CVE-2026-19303
- Affects
- Langflow
- Known exploited
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Published
- Record first published by the source
- September 4, 2026
- Source last modified
- September 10, 2026
Description
IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to delete arbitrary local files or directories due to improper limitation of a pathname to a restricted directory.
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 1.11.2. Someone who has an account and can sign in to Langflow over the network could delete any files or folders on the computer or server where Langflow runs. This happens because a part of the product does not properly keep file locations inside the folder it is meant to use. This flaw is rated High.
What to do
- If you or a staff member installed and run Langflow yourselves, have that person check which version is in use. Versions 1.0.0 through 1.11.2 are affected.
- No fixed version is named for this flaw yet, so check the vendor advisory linked on this page for a fixed release and install it as soon as one 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 10, 2026 and reviewed before publishing.