CVE-2025-3248 KEV EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 100% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2025-05-26.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 99.99% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-306 |
| On CISA KEV | yes — remediate by 2025-05-26 |
| Public exploit | yes |
| Published | 2025-04-07 |
| Last modified | 2026-07-14 |
CISA KEV
| Name | Langflow Missing Authentication Vulnerability |
|---|---|
| Added | 2025-05-05 |
| Due | 2025-05-26 |
| Vendor / product | Langflow / Langflow |
| Ransomware use | known |
Affected (1)
| Vendor | Product |
|---|---|
| langflow | langflow |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Langflow 1.2.x - Remote Code Execution (RCE) | 2025-07-16 |
| exploit-db | Langflow 1.3.0 - Remote Code Execution (RCE) | 2025-04-18 |
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
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