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.
- CVSS 3.1
- 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 100% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-25)
- CISA KEV
- listed 2025-05-05, due 2025-05-26, known ransomware use
- CWEs
- CWE-94, CWE-306
- Published
- Modified
- Record from
- the NVD, synced
Affected
- langflow:langflow
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rvqx-wpfh-mfx7 | PyPI | langflow | <1.3.0 | 1.3.0 |
| GHSA-rvqx-wpfh-mfx7 | PyPI | langflow-base | <0.3.0 | 0.3.0 |
| PYSEC-2025-36 | PyPI | langflow | <1.3.0 | 1.3.0 |
| PYSEC-2026-380 | PyPI | langflow-base | <0.3.0 | 0.3.0 |
References
- https://github.com/langflow-ai/langflow/pull/6911
- https://github.com/langflow-ai/langflow/releases/tag/1.3.0
- https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/
- https://www.vulncheck.com/advisories/langflow-unauthenticated-rce
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248