CVE-2026-4215
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Server-Side Request Forgery in FlowCI SMTP Host Handler

Publication date: 2026-03-16

Last updated on: 2026-04-29

Assigner: VulDB

Description
A security flaw has been discovered in FlowCI flow-core-x up to 1.23.01. The impacted element is the function Save of the file core/src/main/java/com/flowci/core/config/service/ConfigServiceImpl.java of the component SMTP Host Handler. The manipulation results in server-side request forgery. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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Meta Information
Published
2026-03-16
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-03-16
EPSS Evaluated
2026-06-15
NVD
CVE-2026-4215
EUVD
EUVD-2026-12331
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
flowci flow-core-x to 1.23.01 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
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Executive Summary

This vulnerability is a security flaw found in the FlowCI flow-core-x component, specifically in the Save function of the SMTP Host Handler. It allows an attacker to perform server-side request forgery (SSRF), meaning the attacker can make the server send unauthorized requests to other systems. The attack can be executed remotely, and the exploit code has been publicly released.

Impact Analysis

The vulnerability can impact you by allowing an attacker to manipulate the server into making unauthorized requests to internal or external systems. This can lead to information disclosure, unauthorized access to internal services, or further exploitation of the network. Since the exploit is publicly available, the risk of attack is increased.

Compliance Impact

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