Langflow is a tool for building and deploying AI-powered agents and workflows
langflow-ai · langflow
Langflow, the tool for building and deploying AI-powered agents and workflows, contains an OS command injection flaw in its MCP server configuration: the command supplied for a server using the "Stdio" transport is passed directly to bash without validation, allowlisting, or sandboxing. An attacker with any authenticated Langflow account can run arbitrary commands on the server simply by adding such an MCP server, with the command executing as soon as the server list is fetched, and can also inject environment variables such as LD_PRELOAD or PATH through the env field.
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, any authenticated Langflow user can achieve Remote Code Execution (RCE) on the server by adding an MCP server with the "Stdio" transport. The user-supplied command field is passed directly to bash -c "exec {command}" with zero validation, no allowlisting, and no sandboxing. The command executes immediately when the server list is fetched. Additionally, the env field allows arbitrary environment variable injection (e.g., LD_PRELOAD, PATH override). This vulnerability is fixed in 1.9.0.
- Exploited
- Yes, in VulnCheck KEV
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 7 days after disclosure.
- Disclosedday 0
- First seen exploitedVulnCheck KEV evidence+7 days
Patch historyEarlier and later CVEs in the same code, in date order. It shows when a fix was bypassed or incomplete and which version finally fixed it.
2 related vulnerabilities in the same code on the same day.
Linked vulnerabilitiesLinked by evidence that a fix failed or the same code was patched again. Oldest first.
relatedHigh
Why these are linked: Link confidenceHow strong the evidence is that two CVEs are related. High: stated in the CVE text or linked in an advisory, or the same code was patched one release apart. Medium: the same code, or a version step plus a similar description. Low: similar description only.
- Linked in OSV/GitHub advisoryGHSA-w794-rj3p-xv45
This CVECVE-2026-105740Langflow is a tool for building and deploying AI-powered agents…5 Oct 2026
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 8 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- Known_Cve | Oct 14, 2026 | Part 1/313 Oct 2026
- Known_Cve | Oct 13, 2026 | Part 1/212 Oct 2026
- Known_Cve | Oct 12, 2026 | Part 1/211 Oct 2026
- Known_Cve | Oct 11, 2026 | Part 1/210 Oct 2026
- Known_Cve | Oct 10, 2026 | Part 1/29 Oct 2026
- Known_Cve | Oct 9, 2026 | Part 1/28 Oct 2026
- 2 more on OTX