Core: Authorization and Cookie headers leaked to cross-origin servers on HTTP redirect

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@insaf021 已经在做这个了。

开始于 2026年7月31日。

  • #2182 来自 @insaf021 —— 未关闭

评估

难度
3/5
预计耗时
1-2 天
新手友好度
72/100
Issue 类型
缺陷
描述清晰度
描述清楚
活跃度
冷清
技术栈
java

调研方向

从 HttpRequest.handleRedirect() 和 execute() 开始,然后检查 issue 中描述的三个回归场景。验证 scheme、host 和 port 发生变化时的 same-origin 行为,包括默认 port 规范化;当 cross-origin 重定向中不存在 Authorization 和 Cookie 标头,而 same-origin 重定向保留预期行为时,即表示完成。

由索引模型根据 Issue 内容生成。

描述

priority: p3

Environment details

  1. Core - HttpRequest in google-http-client
  2. OS type and version: Any
  3. Java version: Any (Java 8+)
  4. google-http-client version: reproducible on current main

Problem Statement
When HttpRequest follows a redirect to a different origin (different scheme, host, or port),
the Cookie header is not stripped. Additionally, Authorization headers set via interceptors
(e.g. BasicAuthentication) are re-applied by the interceptor on subsequent redirect
iterations regardless of destination origin. This can cause credentials to be silently
forwarded to attacker-controlled servers.

Steps to reproduce

  1. Build an HttpRequest with an Authorization interceptor (e.g. BasicAuthentication) and a
    Cookie header.
  2. Configure the transport to return a 302 redirect to a cross-origin URL (different host).
  3. Execute the request.
  4. Observe that the second request (to the cross-origin target) still includes Authorization
    and Cookie headers.

Proposed Fix
In handleRedirect(), compute whether the new URL is same-origin as the old URL (comparing
scheme, host, and effective port). Strip Cookie header if cross-origin. In execute(), before
each retry, compare current URL origin to original origin and strip Authorization and Cookie
if the URL has changed to a different origin (e.g. after a previous redirect).

Add getEffectivePort() and isSameOrigin() helpers to normalize default ports (80 for http,
443 for https).

Three regression tests are included in the accompanying PR covering same-origin,
cross-origin host change, scheme change, and port change scenarios.

主要语言
Java
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平均合并
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30 天内合并 PR
3

环境准备

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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