Advisory details:
pypa / langflow-base/PYSEC-2026-380
| Advisory ID | pypa/langflow-base/PYSEC-2026-380 |
| Aliases |
CVE-2025-3248
GHSA-rvqx-wpfh-mfx7 PYSEC-2026-380 |
| Summary | Langflow Unauth RCE 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. |
| Status | Published |
| Exploitability | 2.0 |
| Weighted Severity | 8.4 |
| Risk | 10.0 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| There are no known CWE. |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 9.3 | https://github.com/pypa/advisory-database/blob/main/vulns/langflow-base/PYSEC-2026-380.yaml |
| Data source | Exploit-DB |
|---|---|
| Date added | April 18, 2025 |
| Description | Langflow 1.3.0 - Remote Code Execution (RCE) |
| Ransomware campaign use | Unknown |
| Source publication date | April 18, 2025 |
| Exploit type | remote |
| Platform | multiple |
| Source update date | April 18, 2025 |
| Data source | Metasploit |
|---|---|
| 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. |
| Note | Stability: - crash-safe SideEffects: - artifacts-on-disk - ioc-in-logs Reliability: - repeatable-session |
| Ransomware campaign use | Unknown |
| Source publication date | April 9, 2025 |
| Platform | Python |
| Source URL | https://github.com/rapid7/metasploit-framework/tree/master/modules/exploits/multi/http/langflow_unauth_rce_cve_2025_3248.rb |
| Data source | KEV |
|---|---|
| Date added | May 5, 2025 |
| 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 | May 26, 2025 |
| Note | 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 |
| Ransomware campaign use | Known |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-08-15T19:50:13Z/
Decision: Act
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/3xxx/CVE-2025-3248.json
Source Advisory: vulnrichment/CVE-2025-3248
[{'Exploitation': 'active'},
{'Automatable': 'yes'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]