CVE-2025-3248: Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code
Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 100.0%, 100th percentilePublished Updated Assigner: VulnCheck
In CISA’s Known Exploited Vulnerabilities catalog: Langflow Missing Authentication Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
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.
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · CWE-306
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
langflow-ai: langflow
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/langflow-ai/langflow/pull/6911 (opens in new tab)
- github.com/langflow-ai/langflow/releases/tag/1.3.0 (opens in new tab)
- www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-f… (opens in new tab)
- www.vulncheck.com/advisories/langflow-unauthenticated-rce (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)