CVE-2026-17626 Langflow is affected by security vulnerabilities in Model Context Protocol features
Authenticated attackers can read or modify sensitive host files via Docker-based MCP servers due to insufficient filtering of volume-mount arguments.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-17626?
CVE-2026-17626 is a high-severity path traversal vulnerability in Langflow Langflow, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow an authenticated attacker to read, modify, or expose sensitive host files via Docker-based MCP servers due to incomplete filtering of dangerous Docker volume-mount and device-mapping arguments.
Weakness: CWE-266
Which versions are affected by CVE-2026-17626?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-17626?
No fix has been published for CVE-2026-17626 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-17626 being exploited?
There is no known exploitation of CVE-2026-17626 in the wild and no public exploit code.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-f93f-mcp7-xm47.