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CVE-2026-62987— Fabio - Incomplete fix for CVE-2025-48865: operator-configured trust headers (clientip/tls/requestid) still strippable via the Connection header

一分钟漏洞结论

影响对象
fabiolb fabio
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Fabio is an HTTP(S) and TCP router for deploying applications managed by consul. From 1.6.6 until 1.7.2, the CVE-2025-48865 fix in proxy/http_headers.go uses protectHeaders for a hardcoded set of forwarded headers but omits the operator-configured ClientIPHead

CVSS 5.8 · Medium EPSS 0.16% · P6

影响版本矩阵 1

厂商产品 版本范围状态
fabiolb fabio >= 1.6.6, < 1.7.2 affected
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一、 漏洞 CVE-2026-62987 基础信息

漏洞信息

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Vulnerability Title
Fabio - Incomplete fix for CVE-2025-48865: operator-configured trust headers (clientip/tls/requestid) still strippable via the Connection header
来源: CVE Program / CVE List V5
Vulnerability Description
Fabio is an HTTP(S) and TCP router for deploying applications managed by consul. From 1.6.6 until 1.7.2, the CVE-2025-48865 fix in proxy/http_headers.go uses protectHeaders for a hardcoded set of forwarded headers but omits the operator-configured ClientIPHeader, TLSHeader, and RequestID names. In proxy/http_proxy.go, HTTPProxy.ServeHTTP calls addHeaders to set these trust headers before Go ReverseProxy processes the inbound Connection header, allowing an unauthenticated client to name and remove the configured headers before the request reaches the backend. Deployments that enable the corresponding proxy.header options can therefore lose client-IP, TLS-termination, or request-correlation signals used by backend authorization and auditing; the options are empty by default, and the hardcoded protected forwarded headers are unaffected. This issue is fixed in version 1.7.2.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
fabiolb fabio >= 1.6.6, < 1.7.2 -

二、漏洞 CVE-2026-62987 的公开POC

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三、漏洞 CVE-2026-62987 的情报信息

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CVE-2026-62987 补丁与修复 (1)

CVE-2026-62987 其他参考 (2)

IV. Related Vulnerabilities

Same product: fabio
Same vendor: fabiolb
Same weakness: CWE-290

V. Comments for CVE-2026-62987

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