地图 / CVE-2026-92392: HTTP/2 upload Use-After-Free

CVE-2026-92392: HTTP/2 upload Use-After-Free

内存破坏 / 释放后使用 / #4030333

厂商: curl
严重程度: 中危
赏金: —
弱点: 释放后使用
研究员: @onn4a
披露日期: 2026-10-14
资产: https://github.com/curl/curl
CVE: CVE-2026-92392

该报告还没有中文解读。

原文摘录

摘自原文（9124 字符中的一小部分）

Summary: During a file upload, curl mishandles HTTP/2 RST_STREAM received from the server (with reason HTTP_1_1_REQUIRED or REFUSED_STREAM) leading to a use after free of a `struct Curl_easy` object. The control flow is a bit complicated, so I've produced an ASCII tree of the control flow to …

原文中的代码

wget 'https://curl.se/download/curl-8.22.0.tar.gz'
sha1sum curl-8.22.0.tar.gz # should be 284e444b67f676a281906cfc86e9672780555cd4
tar xf curl-8.22.0.tar.gz
mkdir build ; cd build
# build with ASAN enabled
CC=clang CFLAGS="-O2 -g -fsanitize=address"" LDFLAGS="-Wl,-rpath,/opt/curl-release/lib" \ …

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

2026-09-15报告提交
2026-10-14公开披露

阅读 HackerOne 原文 ↗作者 @onn4a · 版权归作者与 curl 所有

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CVE-2026-92392: HTTP/2 upload Use-After-Free · 破甲 POJIA