Critical severity9.9NVD Advisory· Published Aug 28, 2026· Updated Sep 1, 2026
CVE-2026-19295
CVE-2026-19295
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: 1.0.0 - 1.11.1
Patches
Vulnerability mechanics
References
1- www.ibm.com/support/pages/node/7284733nvdVendor Advisory
News mentions
3- Metasploit Wrap Up: This One Goes to Sixteen!Rapid7 Blog · Sep 11, 2026
- IBM: 16 Vulnerabilities Across Products, Critical Flaws in Langflow OSS RevealedVypr Intelligence · Aug 28, 2026
- IBM Langflow OSS: Eight Vulnerabilities Including Critical Code Execution Flaws Disclosed TogetherVypr Intelligence · Aug 28, 2026