Vulnerability Intelligence Report
Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code
CVE-2025-3248
Langflow versions prior to 1.3.0 are susceptible to code injection in the /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:99.99%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-306 ↗CWE-306 Missing Authentication for Critical Function
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| langflow-ai | langflow | 0 < 1.3.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.990%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulnCheck · Bug Bounty Provider · USA |
| Reserved | 2025-04-04T00:58:44 |
| Published | 2025-04-07T14:22:38 |
| Last Updated | 2026-07-14T22:25:39 |
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