CVE detail
CVE-2025-3248: Langflow Missing Authentication Vulnerability
Source: CISA Known Exploited Vulnerabilities catalog · back to feed
Vendor / product
Langflow · Langflow
- Date added (KEV)
- May 05, 2025
- CISA due date
- May 26, 2025
- Ransomware campaign 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.
Vendor fix: Vendor patch
Scorifya interpretation
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Plain English
Technical detail
From CISA
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.
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
See what attackers can see on your domain
This vulnerability is on CISA's Known Exploited Vulnerabilities list, so it is being exploited in the wild right now, including in ransomware campaigns. Scorifya can't test for Langflow directly, but in about 30 seconds it shows what your own domain exposes publicly across TLS, security headers, DNS, and cookies: the surface attackers probe first.
SOC 2 compliance
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See Scorifya Controls →References
- https://github.com/langflow-ai/langflow/pull/6911Patch
- https://github.com/langflow-ai/langflow/releases/tag/1.3.0Release Notes
- https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/ExploitThird Party Advisory
- https://www.vulncheck.com/advisories/langflow-unauthenticated-rceThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248US Government Resource
Other recent CVEs from Langflow
- CVE-2026-0770Langflow, Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability
- CVE-2026-55255Langflow, Langflow Authorization Bypass Through User-Controlled Key Vulnerability
- CVE-2025-34291Langflow, Langflow Origin Validation Error Vulnerability
- CVE-2026-33017Langflow, Langflow Code Injection Vulnerability