Langflow: IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain…
Langflow
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- Severity
- High, CVSS 7.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- Record
- CVE-2026-17627
- 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 9, 2026
Description
IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information and inject messages into workflow history due to improper authorization.
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 1.10.2. The product does not properly check what each signed-in user is allowed to do. Because of this, someone who already has an account could, over the network, obtain sensitive information and insert unwanted messages into the saved history of your workflows. This flaw is rated High.
What to do
- If someone in your organization installed or runs Langflow, that person should check which version is in use. Versions 1.0.0 through 1.10.2 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 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 9, 2026 and reviewed before publishing.