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地图 / CVE-2026-9080: UAF after pause in socket callback

CVE-2026-9080: UAF after pause in socket callback

内存破坏 / 释放后使用 / #3749204

厂商
curl
严重程度
低危
赏金
—
弱点
释放后使用
研究员
@giant_anteater
披露日期
2026-06-24
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(11773 字符中的一小部分)
We've found a heap-use-after-free in `lib/multi_ev.c` triggered by calling `curl_easy_pause()` from within a `CURLMOPT_SOCKETFUNCTION` callback. ASAN-confirmed with the self-contained reproducer below.
原文中的代码
/* lib/multi_ev.c */
mev_in_callback(multi, TRUE);
rc = multi->socket_cb(data, s, comboaction,
                      multi->socket_userp, entry->user_data);  /* fires app callback */
mev_in_callback(multi, FALSE);
entry->announced = TRUE;           /* UAF WRITE — entry may be freed  (line 275) */ …

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

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @giant_anteater · 版权归作者与 curl 所有

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