Langflow: IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to read arbitrary files…
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:H/I:H/A:N
- Record
- CVE-2026-7872
- Affects
- Langflow
- Known exploited
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Published
- Record first published by the source
- July 17, 2026
- Source last modified
- October 24, 2026
Description
IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to read arbitrary files including the JWT signing key and forge authentication tokens for any user.
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 1.10.0. Someone who already has a login to your Langflow installation could use a part of the product to read any file on the server, including the secret key Langflow uses to sign login passes. With that key, they could create fake login passes and act as any user. This flaw is rated High.
What to do
- If someone in your organization installed or runs Langflow, ask them to check which version you use. If it is 1.0.0 through 1.10.0, this flaw affects you.
- No fixed version is named for this flaw yet, so check the vendor advisory linked on this page for a fixed release. 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 October 24, 2026 and reviewed before publishing.