Vulnerability Intelligence Report
Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement
CVE-2026-19295
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.
No Active Exploit Signals
CVSS Base Score
9.9
CRITICAL
Exploitability:3.2
Impact Score:6.1
EPSS Probability:0.98%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-95 ↗CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| IBM | Langflow OSS | 1.0.0 <= 1.11.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.976%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | IBM Corporation · Vendor · USA |
| Reserved | 2026-08-07T16:56:54 |
| Published | 2026-08-28T20:53:00 |
| Last Updated | 2026-09-01T03:56:11 |
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