Command Injection Vulnerability in Langflow by Langflow-ai
CVE-2026-7687

5.3MEDIUM

Key Information:

Vendor

Langflow-ai

Status
Langflow
Vendor
CVE Published:
3 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7687?

A command injection vulnerability exists in the Langflow product by Langflow-ai, specifically within the CodeParser.parse_callable_details function in the code_parser.py file. This vulnerability affects versions up to 1.8.4, allowing remote attackers to execute arbitrary commands through crafted input. The vulnerability has been publicly disclosed, and its exploitation potential raises significant concerns. Despite prior notification, there has been no response from the vendor regarding this issue.

Affected Version(s)

langflow 1.8.0

langflow 1.8.1

langflow 1.8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-7687 - Proof of Concept

References

https://vuldb.com/vuln/360857
vdb-entrytechnical-description
https://vuldb.com/vuln/360857/cti
signaturepermissions-required
https://vuldb.com/submit/798731
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

limshow (VulDB User)
VulDB CNA Team
.