CVE-2025-3248: Langflow Unauth RCE
First published: Mon Apr 07 2025(Updated: )
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.
Credit: disclosure@vulncheck.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Langflow | <1.3.0 | |
| pip/langflow | <1.3.0 | 1.3.0 |
| Langflow | ||
| Langflow | <1.3.0 |
Remedy
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2025-3248
- 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://github.com/advisories/GHSA-c995-4fw3-j39m (Advisory)
- https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/
- https://www.bleepingcomputer.com/news/security/langflow-rce-flaw-exploited-to-hack-ai-app-servers/
- https://www.bleepingcomputer.com/news/security/critical-langflow-rce-flaw-exploited-to-hack-ai-app-servers/
Frequently Asked Questions
What is the severity of CVE-2025-3248?
The severity of CVE-2025-3248 is critical due to its potential for remote code execution.
How do I fix CVE-2025-3248?
To fix CVE-2025-3248, upgrade to Langflow version 1.3.0 or later.
Who is affected by CVE-2025-3248?
CVE-2025-3248 affects all versions of Langflow prior to 1.3.0.
Can CVE-2025-3248 be exploited remotely?
Yes, CVE-2025-3248 can be exploited remotely by unauthenticated attackers.
What type of vulnerability is CVE-2025-3248?
CVE-2025-3248 is a code injection vulnerability.
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