Langflow: IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass…
Langflow
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- Severity
- High, CVSS 8.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
- Record
- CVE-2026-9077
- Affects
- Langflow
- Known exploited
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Published
- Record first published by the source
- August 5, 2026
- Source last modified
- August 6, 2026
Description
IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host system.
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 1.10.3. Someone who already has an account on your Langflow system could, over the network, get around a safeguard meant to limit a feature to the computer Langflow runs on. They could then write their own settings for connecting AI assistants to outside tools into the settings files of code editor programs on that computer. This flaw is rated High.
What to do
- The person who installed or runs Langflow, or the IT provider who manages it for your organization, should handle this.
- Check which version of Langflow you use. Versions
1.0.0through1.10.3are 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 August 6, 2026 and reviewed before publishing.