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CVE-2026-100390— Zoraxy 3.2.3 through 3.3.4 Client IP Spoofing via X-Forwarded-For IPv6

Quick assessment

Affected
tobychui zoraxy
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zoraxy 3.2.3 至 3.3.4 版本在设置转发头部（Forwarded Headers）时，未能正确解析 RemoteAddr 字段中的 IPv6 地址。未认证的 IPv6 连接攻击者可以构造任意的 X-Forwarded-For 值，从而伪造其源 IP 地址，绕过基于 IP 的授权提供商访问控制。

CVSS 7.4 · High EPSS 0.29% · P19

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-100390

Vulnerability Information
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Vulnerability Title
Zoraxy 3.2.3 through 3.3.4 Client IP Spoofing via X-Forwarded-For IPv6
Source: CVE Program / CVE List V5
Vulnerability Description
Zoraxy versions 3.2.3 through 3.3.4 fail to properly parse IPv6 addresses in the RemoteAddr field when setting forwarded headers. Unauthenticated attackers connecting over IPv6 can supply arbitrary X-Forwarded-For values to spoof their source IP and bypass authorization provider IP-based access controls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
tobychui zoraxy 3.2.3 ~ 3.3.4 -

II. Public POCs for CVE-2026-100390

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-100390

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Vendor Advisories for CVE-2026-100390 (1)

Other References for CVE-2026-100390 (3)

IV. Related Vulnerabilities

Same product: zoraxy
Same vendor: tobychui
Same weakness: CWE-290

V. Comments for CVE-2026-100390

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