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CVE-2026-73530— Flyto2 Core < 2.28.0 SSRF Guard Bypass via is_private_ip()

Quick assessment

Affected
flytohub flyto-core
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flyto2 Core是Flyto2组织开源的一个人工智能代理框架和工作流自动化引擎。 Flyto2 Core 2.28.0之前版本存在服务端请求伪造漏洞，该漏洞源于服务端请求伪造防护绕过，攻击者可通过提交请求或触发302重定向到未阻止的IPv6地址 ，绕过 中的私有IP范围和阻止的主机名检查，从而访问 、 和 模块中绑定到IPv6回环的内部服务。

CVSS 7.7 · High EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1557.002 · ARP Cache Poisoning

Affected Version Matrix 1

VendorProduct Version RangeStatus
flytohub flyto-core < 2.28.0 affected
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I. Basic Information for CVE-2026-73530

Vulnerability Information
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Vulnerability Title
Flyto2 Core < 2.28.0 SSRF Guard Bypass via is_private_ip()
Source: CVE Program / CVE List V5
Vulnerability Description
Flyto2 Core before 2.28.0 contains a server-side request forgery guard bypass vulnerability that allows attackers to reach internal services by supplying URLs using the unblocked IPv6 address `::` which the kernel routes to loopback identically to `0.0.0.0`. Attackers can submit requests or trigger 302 redirects to ` to bypass the private IP range and blocked hostname checks in `is_private_ip()`, reaching services bound to IPv6 loopback across the `http.get`, `http.request`, and `http.batch` modules.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Flyto2 Core 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flyto2 Core是Flyto2组织开源的一个人工智能代理框架和工作流自动化引擎。 Flyto2 Core 2.28.0之前版本存在服务端请求伪造漏洞，该漏洞源于服务端请求伪造防护绕过，攻击者可通过提交请求或触发302重定向到未阻止的IPv6地址`::`，绕过`is_private_ip()`中的私有IP范围和阻止的主机名检查，从而访问`http.get`、`http.request`和`http.batch`模块中绑定到IPv6回环的内部服务。
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
flytohub flyto-core 0 ~ 2.28.0 -

II. Public POCs for CVE-2026-73530

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 6156 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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POC zip download
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III. Intelligence Information for CVE-2026-73530

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Patches & Fixes for CVE-2026-73530 (1)

Vendor Advisories for CVE-2026-73530 (2)

IV. Related Vulnerabilities

Same product: flyto-core
Same vendor: flytohub
Same weakness: CWE-918

V. Comments for CVE-2026-73530

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