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1 result for CVE-2025-3248 · exact CVE match · NVD record, scored with CISA KEV and FIRST EPSS

CVE-2025-3248

Langflow — Langflow Missing Authentication Vulnerability

Langflow · CWE-306 | CWE-94 — Code injection · in CISA KEV since 2025-05-05

ExigentKEV since 2025 · listed over a yearRansomwareCISA KEVActively Exploited
95

EVRS 95 of 100 Immediate

Out-of-Band / Urgent Remediation

Rank 3 of 2,956 tracked

Open CVE page Download PDF

Why it scores 95

Evidence available: 6 of 7 signals

Listed in the CISA KEV catalog, and associated with known ransomware campaigns.

  • CISA KEVApplied
  • RansomwareApplied
  • Vendor exploitationDid not apply
  • EPSSApplied
  • Microsoft Exploitability IndexNot applicable
  • Pre-patch disclosureNo data
  • KEV recencyDid not apply
  • CVSSApplied

The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data

Fix

Patch or fixed version identified

CISA required action

Fixed in

  • langflow1.3.0
  • langflow-base0.3.0

Affected versions

  • langflow (pip)affected < 1.3.0, fixed in 1.3.0
  • langflow-base (pip)affected < 0.3.0, fixed in 0.3.0

Remediation

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Fixed versions from NVD and GitHub. Affected packages also in GitHub Advisory GHSA-rvqx-wpfh-mfx7 (CC BY 4.0).

Evidence

Each value with its source
MeasureValueSource
CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. 9.8 NVD
FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. 0.999 (99.99th pctl) FIRST EPSS
Actively exploitedWhether a source of record has confirmed attacks using it in the wild. Confirmed CISA KEV
Ransomware campaign useWhether CISA has seen ransomware operators use it. Known CISA KEV
CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. 2025-05-26 · KEV since 2025 · listed over a year CISA KEV
Public exploit moduleA module existing is not the same as active exploitation. Public module exists Metasploit
EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by VulnCheck. Listed ENISA EUVD

Description

NVD

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.

What CISA says to do

Public module

Metasploit lists a public excellent-rank module for this CVE: Langflow AI RCE (multi/http/langflow_unauth_rce_cve_2025_3248). A module existing is not the same as active exploitation; see metasploit.com.