CVE-2025-3248
unknown
KEV
CVSS v3
—
CVSS v4 NEW
—
VIR risk
2.5
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.
CISA KEV
- Vendor
- Langflow
- Product
- Langflow
- Due date
- 2025-05-26
Predictions
Exploit likelihood
99%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
{Vendor advisory: cisa-kev — 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}
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Langflow 1.3.0 - Remote Code Execution (RCE)
Source code queued for fetch — refresh in a moment.
Langflow 1.2.x - Remote Code Execution (RCE)
Source code queued for fetch — refresh in a moment.
Metasploit modules
Source fetch failed: fetch_error — view the original via the link above.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | langflow | <1.3.0 | 1.3.0 |
| PyPI | langflow-base | <0.3.0 | 0.3.0 |
References
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-rvqx-wpfh-mfx7
- https://nvd.nist.gov/vuln/detail/CVE-2025-3248
- https://github.com/langflow-ai/langflow/pull/6911
- https://github.com/langflow-ai/langflow/commit/faac4db133de32fcb6d483fa9ff52f40ce42bdc0
- https://github.com/langflow-ai/langflow
- https://github.com/langflow-ai/langflow/releases/tag/1.3.0
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248
- 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.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/
- 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
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.