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Heap use-after-free (write) in mev_forget_socket() via reentrant curl_easy_pause() — incomplete fix for CVE-2026-9080

内存破坏 / 释放后使用 / #3911968

厂商
curl
严重程度
低危
赏金
—
弱点
释放后使用
研究员
@juthawong
披露日期
2026-08-04
资产
https://github.com/curl/curl
CVE
CVE-2026-9080

该报告还没有中文解读。

原文摘录

摘自原文(6711 字符中的一小部分)
lib/multi_ev.c keeps a hash table (multi->ev.sh_entries) of per-socket bookkeeping structs (struct mev_sh_entry) used to decide when to notify the application's socket callback (CURLMOPT_SOCKETFUNCTION) about interest changes on a socket.

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 @juthawong · 版权归作者与 curl 所有

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