CVE-2025-3248NVD

Vulnerability Summary

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.

Severity Level

CRITICAL(9.8)

Published Date

Apr 7, 2025

Last Modified

Oct 8, 2026

PoC

Available(Metasploit, Nuclei)

Exploitation Status

ACTIVE

EPSS Score (30-Day)

99.99%Probability

Root Weakness (CWE)

CWE-306: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CWE-94: Code Injection ↗

The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended syntax or behavior.

CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Langflow Langflow < 1.3.0

Patched Versions

Langflow Langflow 1.3.0

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