Langflow: IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute…
Langflow
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- 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-2026-78571
- Affects
- Langflow
- Known exploited
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Published
- Record first published by the source
- September 10, 2026
- Source last modified
- September 16, 2026
Description
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to an unguarded eval() call on attacker-controlled input.
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 1.11.5. A part of the product runs text supplied by a user as program instructions without checking it first. Because of this, an attacker who has a login to your Langflow and can reach it over a network could run any commands they choose on the computer where Langflow runs. This flaw is rated High.
What to do
- Find out who installed or runs Langflow for your organization: a staff member, a volunteer, or an IT provider or vendor who manages it for you.
- If someone in your organization runs it, ask them to check which version is installed. Versions 1.0.0 through 1.11.5 have this flaw.
- No fixed version is named for this flaw yet, so have that person 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 you, send them this advisory and ask when the update will be done.
Analysis written from the source record as of September 16, 2026 and reviewed before publishing.