GHSA-w794-rj3p-xv45: langflow (CVE-2026-105697)

Package	Ecosystem	Affected	Fixed in
langflow	PyPI	>=1.1.2, <1.10.3	1.10.3
langflow-base	PyPI	>=0.1.2, <0.10.3	0.10.3
lfx	PyPI	<1.10.3	1.10.3

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Langflow (PyPI packages langflow, langflow-base and lfx) is vulnerable to OS command injection through MCP stdio server configurations: langflow 1.1.2 to before 1.10.3, langflow-base 0.1.2 to before 0.10.3, and lfx before 1.10.3. An attacker who can reach the MCP server settings or build a flow with an MCP Tools component can supply an arbitrary command that runs on the Langflow host as the process user. With the default auto-login setting, no account is needed. Upgrade to langflow 1.10.3, langflow-base 0.10.3 or lfx 1.10.3.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.9	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0095, the 61st percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:08 UTC First seen by agentprime
31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.