CVE-2026-115477— obsidian-tc 插件拒绝确认可触发 HTTP 破坏性调用
一分钟漏洞结论
影响对象
The-40-Thieves obsidian-tc
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
obsidian-tc 是一个受治理且支持智能体的 Model Context Protocol（MCP）服务器，专为 Obsidian 知识库设计。在从 1.13.0 到 1.31.4 的版本中，若部署采用可流式处理的 HTTP 模式，并配置了 ，同时客户端为 2026 年 7 月 28 日左右发布且声明支持 ，则会出现以下漏洞：当某个受调度门控（dispatch-gated）的工具调用提供 确认提示时，即使用户明确拒绝或取消该请求，或 elicitation（引导）响应被省略或格式错误，只要客户端在重新提交时原
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| The-40-Thieves | obsidian-tc | >= 1.13.0, < 1.31.4 |
affected |
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一、 漏洞 CVE-2026-115477 基础信息
漏洞信息
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Vulnerability Title
obsidian-tc: Declined human-in-the-loop confirmations can permit destructive calls over HTTP
来源: CVE Program / CVE List V5
Vulnerability Description
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. From 1.13.0 until 1.31.4, on a Streamable HTTP deployment with `auth.jwtSecret` configured and a 2026-07-28-era client declaring `elicitation.form` support, a dispatch-gated tool call offered an `inputRequired` confirmation could still complete after the human declined or cancelled, or the elicitation response was omitted or malformed, provided the client echoed the validly bound `requestState` on resubmission. The server trusted an authentic, call-bound state as proof of approval even though that state was minted before the `elicitation/create` leg was asked and proved only that the resubmission belonged to the same call. A client behaving incorrectly or under an attacker's control could therefore execute dispatch-gated destructive vault operations without the human's approval, while still requiring the caller's ordinary tool permissions. Only tools marked `destructive: true` or requiring a scope with a human-in-the-loop floor were reachable through this bypass. The sixteen handler-side conditionally gated tools, including `write_note` overwrite and `move_note`, did not read elicitation state on the modern wire and let neither approval nor decline through that path. Affected deployments using stdio or leaving `auth.jwtSecret` unset instead used the CLI `elicit_token` fallback and did not offer this `requestState` round trip. The fix does not prevent a malicious client from reporting a fabricated approval, because the server cannot verify that the client displayed the form or that a human saw it. This issue is fixed in version 1.31.4.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| The-40-Thieves | obsidian-tc | >= 1.13.0, < 1.31.4 | - |
|
二、漏洞 CVE-2026-115477 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-115477 补丁与修复 (1)
CVE-2026-115477 厂商安全公告 (1)
CVE-2026-115477 其他参考 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-115477
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