Langflow: IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain…
Langflow
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- Severity
- High, CVSS 7.7
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Record
- CVE-2026-19304
- 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 28, 2026
Description
IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information from internal services due to a URL parser discrepancy.
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. Because the product reads web addresses inconsistently, an attacker who has a login to your Langflow and can reach it over a network could get sensitive information from internal services. This flaw is rated High.
What to do
- The person who installed or runs Langflow for your organization should act on this. If an IT provider or vendor runs it for you, send them this advisory and ask when the update will be done.
- Find out which version of Langflow you use. If it is anywhere from
1.0.0through1.11.2, your installation is affected. - No fixed version is named for this flaw yet, so check the vendor advisory linked on this page for a fixed release.
- Once a fixed release is available, install it as soon as you can.
Analysis written from the source record as of September 28, 2026 and reviewed before publishing.