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CVE-2025-3248Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code
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.
9.8 CRITICALEPSS 99.99%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.8 | CRITICAL | 3.1VulnCheck (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CISA required action
⚡ Known exploited · remediation due May 26, 2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
- CVE ID
- CVE-2025-3248
- Status
- Analyzed
- Assigner (CNA)
- VulnCheck
- Published
- Apr 7, 2025
- Last modified
- 2026-10-08 16:16 UTC
Affected Products
As published by the CNA in the CVE record.
langflow-ailangflow1 version range
- before 1.3.0
References
- github.com https://github.com/langflow-ai/langflow/pull/6911
- github.com https://github.com/langflow-ai/langflow/releases/tag/1.3.0
- horizon3.ai https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/
- vulncheck.com https://www.vulncheck.com/advisories/langflow-unauthenticated-rce
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248