CVE-2025-3248

CVE-2025-3248: Langflow Unauthenticated Remote Code Execution RCE This repository contains two Python scripts: LangflowCheck.py: A scanner that checks for Langflow AI instances vulnerable to CVE-2025-3248. exploit.py: A working reverse shell exploit for vulnerable Langflow targets. Summary...

CVE-2025-3248

CVE-2025-3248 — Langflow AI Remote Code Execution Unauthenticated Author: 0xgh057r3c0n Description This exploit targets a critical unauthenticated RCE vulnerability CVE-2025-3248 in Langflow AI. The vulnerability allows an attacker to execute arbitrary system commands on the target server via the...

VulnCheck KEV: CVE-2026-51886

langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code remote. The component is: src/backend/base/langflow/api/v1/validate.py:validate-postvalidatecode-a-real-authenticated-http-post-to-api-v1. The attack vector is: Attack surface: HTTP or browser-backed...

EUVD-2026-91120

Langflow: Title Authenticated Remote Code Execution in validatecode via Malicious Decorators Description...

EUVD-2026-91119

langflow-ai langflow v1.8.4 is affected by: Directory Traversal. The impact is: Arbitrary file write outside the intended workspace or storage boundary.. The component is:...

GHSA-QQW9-2VJ9-HX7R Duplicate Advisory: Title Authenticated Remote Code Execution in validate_code via Malicious Decorators Description

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-w584-2h2r-2hvf. This link is maintained to preserve external references. Original Description langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code remote. The compone...

Duplicate Advisory: Title Authenticated Remote Code Execution in validate_code via Malicious Decorators Description

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-w584-2h2r-2hvf. This link is maintained to preserve external references. Original Description langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code remote. The compone...

CVE-2026-51888

langflow-ai langflow v1.8.4 is affected by: Directory Traversal. The impact is: Arbitrary file write outside the intended workspace or storage boundary.. The component is:...

CVE-2026-51886

langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code remote. The component is: src/backend/base/langflow/api/v1/validate.py:validate-postvalidatecode-a-real-authenticated-http-post-to-api-v1. The attack vector is: Attack surface: HTTP or browser-backed...

PT-2026-104044

Name of the Vulnerable Software and Affected Versions langflow-ai langflow versions prior to 1.8.5 Description A directory traversal flaw exists where a public-facing HTTP route handler forwards attacker-controlled paths or filenames into host file creation without boundary enforcement. This allo...

CVE-2026-51888

langflow-ai langflow v1.8.4 is affected by: Directory Traversal. The impact is: Arbitrary file write outside the intended workspace or storage boundary.. The component is:...

CVE-2026-51886: Undefined Security Weakness

langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code remote. The component is: src/backend/base/langflow/api/v1/validate.py:validate-postvalidatecode-a-real-authenticated-http-post-to-api-v1. The attack vector is: Attack surface: HTTP or browser-backed...

CVE-2026-51886

langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code remote. The component is: src/backend/base/langflow/api/v1/validate.py:validate-postvalidatecode-a-real-authenticated-http-post-to-api-v1. The attack vector is: Attack surface: HTTP or browser-backed...

CVE-2026-51888: Undefined Security Weakness

langflow-ai langflow v1.8.4 is affected by: Directory Traversal. The impact is: Arbitrary file write outside the intended workspace or storage boundary.. The component is:...

CVE-2026-51888

langflow-ai langflow v1.8.4 is affected by: Directory Traversal. The impact is: Arbitrary file write outside the intended workspace or storage boundary.. The component is:...

PT-2026-104043

Name of the Vulnerable Software and Affected Versions langflow-ai langflow versions prior to 1.9.4 Description An authenticated attacker can execute arbitrary Python code on the server via a code injection flaw. The issue exists because a public-facing route accepts raw Python source and forwards...

CVE-2026-51886

The langflow-ai langflow application (up to v1.9.3 ) is vulnerable to Authenticated Remote Code Execution (RCE) via a code injection flaw in the validate_code function. The /api/v1/validate/code endpoint uses Python's exec() function to compile and execute user-supplied code for validation. While...

CVE-2026-51888

The langflow-ai langflow software, specifically versions up to 1.8.4 , is vulnerable to an absolute path traversal vulnerability in the knowledge_bases-create_knowledge_base-a-live-http-post-to-create-knowledge_base endpoint. The root cause is a lack of boundary enforcement in src/backend/base/la...

CVE-2026-51886

langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code remote. The component is: src/backend/base/langflow/api/v1/validate.py:validate-postvalidatecode-a-real-authenticated-http-post-to-api-v1. The attack vector is: Attack surface: HTTP or browser-backed...

Langflow AI Custom Component Authenticated Remote Code Execution

Langflow versions 1.0.0 through 1.11.1 are susceptible to authenticated remote code execution due to improper enforcement of security restrictions of code generation on the /api/v1/customcomponent endpoint. The endpoint accepts attacker controlled code that is then passed to Pythons exec function...