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地图 / MQTT: unsigned integer underflow bypasses MAX_MQTT_MESSAGE_SIZE check

MQTT: unsigned integer underflow bypasses MAX_MQTT_MESSAGE_SIZE check

业务逻辑 / Unlabeled / #3508854

厂商
curl
严重程度
未评级
赏金
—
弱点
Unlabeled
研究员
@0xshakib0x04
披露日期
2026-01-13
资产
—
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(1232 字符中的一小部分)
Summary An unsigned integer underflow exists in libcurl's MQTT publish path. Due to incorrect arithmetic ordering in the size validation logic, oversized MQTT PUBLISH messages are not rejected as intended.

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 @0xshakib0x04 · 版权归作者与 curl 所有

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