CVE-2026-30869 — AI Deep Analysis Summary

Q: What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Path Traversal in `/export` endpoint. 📉 **Consequences**: Arbitrary file read on server. 💥 **Impact**: Leakage of sensitive config info & private data.

Q: Root Cause? (CWE/Flaw)

🛡️ **CWE**: CWE-22 (Path Traversal). 🔍 **Flaw**: Insecure handling of file paths in the export feature, allowing directory traversal sequences.

Q: Who is affected? (Versions/Components)

👥 **Vendor**: SiYuan Note. 📦 **Product**: SiYuan Personal Knowledge Management. 📅 **Affected**: Versions **before 3.5.10**.

Q: What can hackers do? (Privileges/Data)

🕵️ **Hackers Can**: Read ANY file from the server filesystem. 📂 **Data Access**: Sensitive configurations, user data, and system files. 🚫 **No Auth Required** (PR:N).

Q: Is exploitation threshold high? (Auth/Config)

⚡ **Threshold**: LOW. 🌐 **Network**: Remote (AV:N). 🔑 **Auth**: None required (PR:N). 🖱️ **UI**: None required (UI:N). 🎯 **Complexity**: Low (AC:L).

Q: Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exp**: No PoC provided in data. 📜 **Status**: Advisory confirmed via GitHub GHSA. ⏳ **Wild Exp**: Unconfirmed, but risk is HIGH due to low barrier.

Q: How to self-check? (Features/Scanning)

🔍 **Check**: Scan for `/export` endpoint accessibility. 📋 **Verify**: Check installed SiYuan version number. 🚩 **Flag**: If version < 3.5.10, you are vulnerable.

Q: Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: Yes. 📥 **Action**: Upgrade SiYuan to **version 3.5.10** or later. 🔗 **Ref**: GitHub Security Advisory GHSA-2h2p-mvfx-868w.

Q: What if no patch? (Workaround)

🛑 **Workaround**: Disable or restrict access to the `/export` endpoint if upgrading is impossible. 🧱 **Firewall**: Block external access to this specific API route.

Q: Is it urgent? (Priority Suggestion)

🔥 **Priority**: HIGH. 🚨 **Urgency**: Critical. 📢 **Reason**: Remote, unauthenticated, low-complexity file read. Patch immediately to prevent data breach.

Updated May 06, 2026 CVSS 9.3 · Critical

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Path Traversal in `/export` endpoint. 📉 **Consequences**: Arbitrary file read on server. 💥 **Impact**: Leakage of sensitive config info & private data.

Q2Root Cause? (CWE/Flaw)

🛡️ **CWE**: CWE-22 (Path Traversal). 🔍 **Flaw**: Insecure handling of file paths in the export feature, allowing directory traversal sequences.

Q3Who is affected? (Versions/Components)

👥 **Vendor**: SiYuan Note. 📦 **Product**: SiYuan Personal Knowledge Management. 📅 **Affected**: Versions **before 3.5.10**.

Q4What can hackers do? (Privileges/Data)

🕵️ **Hackers Can**: Read ANY file from the server filesystem. 📂 **Data Access**: Sensitive configurations, user data, and system files. 🚫 **No Auth Required** (PR:N).

Q5Is exploitation threshold high? (Auth/Config)

⚡ **Threshold**: LOW. 🌐 **Network**: Remote (AV:N). 🔑 **Auth**: None required (PR:N). 🖱️ **UI**: None required (UI:N). 🎯 **Complexity**: Low (AC:L).

Q6Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exp**: No PoC provided in data. 📜 **Status**: Advisory confirmed via GitHub GHSA. ⏳ **Wild Exp**: Unconfirmed, but risk is HIGH due to low barrier.

Q7How to self-check? (Features/Scanning)

🔍 **Check**: Scan for `/export` endpoint accessibility. 📋 **Verify**: Check installed SiYuan version number. 🚩 **Flag**: If version < 3.5.10, you are vulnerable.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: Yes. 📥 **Action**: Upgrade SiYuan to **version 3.5.10** or later. 🔗 **Ref**: GitHub Security Advisory GHSA-2h2p-mvfx-868w.

Q9What if no patch? (Workaround)

🛑 **Workaround**: Disable or restrict access to the `/export` endpoint if upgrading is impossible. 🧱 **Firewall**: Block external access to this specific API route.

Q10Is it urgent? (Priority Suggestion)

🔥 **Priority**: HIGH. 🚨 **Urgency**: Critical. 📢 **Reason**: Remote, unauthenticated, low-complexity file read. Patch immediately to prevent data breach.

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Vulnerability detail Full AI analysis (login) siyuan-note CWE-22