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urlapi: CURLUPART_HOST accepts text after an IPv6 zone ip and URL round trip changes the host

其他弱点 / 输入校验不当 / #4127756

厂商
curl
严重程度
低危
赏金
—
弱点
输入校验不当
研究员
@offyotto
披露日期
2026-10-19
资产
https://github.com/curl/curl
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(2431 字符中的一小部分)
Summary: [six or fewer sentences describing the issue in your own human voice and optionally a short proof-of-concept script] An app can set a host from untrusted input from CURLUPART_HOST, as the docs allow, and rely on curl to reject bad hosts. curl accepts [fe80::1%25eth0]@evil.example/x as a …
原文中的代码
   cc repro.c -I<curl>/include -L<curl>/lib -lcurl -o repro
   

默认不展示报告全文。以上为简短摘录,完整复现过程请阅读原文。版权归研究员与 curl 所有。

时间线

阅读 HackerOne 原文 ↗作者 @offyotto · 版权归作者与 curl 所有

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