CVE-2025-3248 (GCVE-0-2025-3248)

Vulnerability from cvelistv5 – Published: 2025-04-07 14:22 – Updated: 2026-07-14 22:25
VLAI CISA Previdian
Title
Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code
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
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-15 19:50 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version
langflow-ai langflow Affected: 0 , < 1.3.0 (semver)
    cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Naveen Sunkavally of Horizon3.ai
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7e2e03ad-39cb-478d-b09c-122160cfbd6a

Vulnerability ID: CVE-2025-3248

Status: Confirmed

Status Updated: 2025-05-05 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2025-05-05
Asserted: 2025-05-05
Scope
Notes: Langflow Missing Authentication Vulnerability | Affected: Langflow / Langflow | Description: Langflow contains a missing authentication vulnerability in the /api/v1/validate/code endpoint that allows a remote, unauthenticated attacker to execute arbitrary code via crafted HTTP requests. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2025-05-26 | Known ransomware campaign use (KEV): Known | Notes (KEV): This vulnerability affects a common open-source project, third-party library, or a protocol used by different products. For more information, please see: https://github.com/advisories/GHSA-c995-4fw3-j39m ; https://nvd.nist.gov/vuln/detail/CVE-2025-3248
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-306
Feed CISA Known Exploited Vulnerabilities Catalog
Product Langflow
Due Date 2025-05-26
Date Added 2025-05-05
Vendorproject Langflow
Vulnerabilityname Langflow Missing Authentication Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 5768e484-68ec-4446-9bb5-ef56eb1d251e

Vulnerability ID: CVE-2025-3248

Status: Confirmed

Status Updated: 2025-05-05 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2025-05-05
Asserted: 2025-05-05
Scope
Notes: Langflow Unauth RCE | Affected: Langflow-ai / langflow | CVSS: 9.8 (CRITICAL) | EPSS: 0.99993 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Langflow Unauth RCE
Cve Id CVE-2025-3248
Vendor Langflow-ai
Ghsa Id GHSA-RVQX-WPFH-MFX7
Product langflow
Added Date 2025-05-05T00:00:00.000Z
Cvss Score 9.8
Epss Score 0.99993
Previous Ids
Cvss Severity CRITICAL
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.99987
Used In Malware unknown
Vulnerability Id CVE-2025-3248
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-10-02 09:10 CEST | Updated: 2026-10-02 09:10 CEST
Show details on NVD website
To clipboard 

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