Server-Side Request Forgery (SSRF) in Langflow - CVE-2025-68477
Published: April 24, 2026
Vulnerability identifier: #VU127531
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-68477
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Langflow
Affected software:
Langflow
Langflow
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information from internal network resources.
The vulnerability exists due to server-side request forgery (SSRF) in the API Request component when processing a user-supplied URL during flow execution. A remote user can send a specially crafted flow execution request with an arbitrary URL to disclose sensitive information from internal network resources.
The response body from the server-side request is returned to the client, making the issue non-blind. Exploitation can occur through the /api/v1/run and /api/v1/run/advanced endpoints using an API key.
How to mitigate CVE-2025-68477
Install security update from vendor's website.