CVE-2026-19295 Code injection in Langflow OSS
Authenticated attackers can execute arbitrary OS commands by bypassing custom component restrictions, leading to privilege escalation.
- 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-2026-19295?
CVE-2026-19295 is a critical code injection vulnerability in Langflow Langflow, published on 28 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 1.11.1 allows an authenticated attacker to execute arbitrary operating system commands in the server process by saving a flow with a crafted type field value and triggering a build of a wrapper flow that references it. This allowed privilege escalation from "authenticated flow user" to arbitrary OS-level command execution under the server process identity, bypassing the LANGFLOW_ALLOW_CUSTOM_COMPONENTS=false policy control.
Weakness: CWE-95
Which versions are affected by CVE-2026-19295?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-19295?
No fix has been published for CVE-2026-19295 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-19295 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19295 exists.
Public exploit code: 1 Metasploit module and 1 proofs of concept on GitHub.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-74fg-mx2g-3cx8.