🛡️ GHSA-c995-4fw3-j39m — langflow (CVE-2025-3248)

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-306 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Duplicate Advisory: Langflow Vulnerable to Code Injection via the /api/v1/validate/code endpoint

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-rvqx-wpfh-mfx7. This link is maintained to preserve external references.

Original Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

GHSA-c995-4fw3-j39m is classified as CWE-306: Missing Authentication for Critical Function. A sensitive function can be reached without authenticating at all.

Affected software

GHSA-c995-4fw3-j39m is recorded against 1 package.

  • langflow (fixed in 1.3.0)

Timeline and source

Published on 7 April 2025 and last revised on 17 June 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
github.com (Web)
www.horizon3.ai (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-306
Public Exploit ✅ No
Source OSV
Published 2025-04-07
Updated 2026-08-20
Modified 2025-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
langflow — 1.3.0

Similar Threats

Exploit Protection

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GHSA-c995-4fw3-j39m carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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