CVE-2026-4215— FlowCI flow-core-x SMTP Host ConfigServiceImpl.java save server-side request forgery
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I. Basic Information for CVE-2026-4215
Vulnerability Information
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Vulnerability Title
FlowCI flow-core-x SMTP Host ConfigServiceImpl.java save server-side request forgery
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
flow-core-x 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
flow-core-x是flow.ci开源的一个简单强大的持续集成与部署服务器。 flow-core-x 1.23.01及之前版本存在代码问题漏洞，该漏洞源于组件SMTP Host Handler中文件core/src/main/java/com/flowci/core/config/service/ConfigServiceImpl.java的函数Save存在缺陷，可能导致服务端请求伪造。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| FlowCI | flow-core-x | 1.23.01 | - |
II. Public POCs for CVE-2026-4215
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-918
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New API: SSRF Filter Bypass via 0.0.0.0
V. Comments for CVE-2026-4215
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