# CVE-2025-3248

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.

- Page: https://www.vulneraibility.com/cve/CVE-2025-3248
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2025-05-05; CISA due date 2025-05-26; known ransomware use
- EPSS: 99.99%
- Public exploit code: 2 on Exploit-DB · 1 Metasploit module · 29 GitHub proofs of concept · 1 Nuclei template (first 2025-04-10)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-08-15)
- Weakness: CWE-306
- Also known as: GHSA-rvqx-wpfh-mfx7, PYSEC-2025-36, PYSEC-2026-380
- Published: 2025-04-07

## Affected versions

- langflow-ai langflow: affected < 1.3.0

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://github.com/langflow-ai/langflow/pull/6911
- [other] https://github.com/langflow-ai/langflow/releases/tag/1.3.0
- [exploit] https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/
- [advisory] https://www.vulncheck.com/advisories/langflow-unauthenticated-rce
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.