CVE-2024-35225 — AI Deep Analysis Summary

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-79** (Cross-site Scripting) logic flaw. ⚠️ **Flaw**: The proxy fails to properly sanitize or restrict user-supplied process names/arguments, allowing injection of malicious commands.

Q: Who is affected? (Versions/Components)

📦 **Affected**: **Jupyter Server Proxy** 📉 **Versions**: < 3.2.4 AND < 4.2.0. 🏢 **Vendor**: JupyterHub.

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

🔓 **Exploitation Threshold**: ✅ **Auth Required**: Yes (User must be authenticated). ✅ **UI Interaction**: Yes (User must trigger the request). 📊 **Complexity**: Low (AC:L).

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

🧪 **Public Exploit**: ❌ **No PoC** listed in data. ⚠️ **Wild Exploitation**: Unknown, but severity is High (CVSS H). Treat as **critical risk**.

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

🔍 **Self-Check**: 1️⃣ Check `pip show jupyter-server-proxy`. 2️⃣ Verify version is **< 3.2.4** or **< 4.2.0**. 3️⃣ Scan for JupyterHub deployments using this proxy.

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

🩹 **Official Fix**: ✅ **Yes**. Update to **v3.2.4+** or **v4.2.0+**. 🔗 **Patch**: See GitHub commit `7abc9dc` and advisory `GHSA-fvcq-4x64-hqxr`.

Q: What if no patch? (Workaround)

🛑 **No Patch Workaround**: 1️⃣ **Disable** Jupyter Server Proxy if not needed. 2️⃣ **Restrict** access to JupyterHub via strict firewall rules. 3️⃣ **Monitor** logs for suspicious external process spawns.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH** ⚡ **Priority**: Patch immediately. CVSS Score is High (9.8 implied by C:H/I:H/A:H). Do not ignore!

Updated May 08, 2026 CVSS 9.7 · 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**: Jupyter Server Proxy allows running external processes with authenticated web access.…

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Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-79** (Cross-site Scripting) logic flaw. <br>⚠️ **Flaw**: The proxy fails to properly sanitize or restrict user-supplied process names/arguments, allowing injection of malicious commands.

Q3Who is affected? (Versions/Components)

📦 **Affected**: **Jupyter Server Proxy** <br>📉 **Versions**: < 3.2.4 AND < 4.2.0. <br>🏢 **Vendor**: JupyterHub.

Q4What can hackers do? (Privileges/Data)

💀 **Attacker Capabilities**: <br>1️⃣ Run **arbitrary external processes** on the server. <br>2️⃣ Access these processes via **authenticated web interfaces**.…

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Q5Is exploitation threshold high? (Auth/Config)

🔓 **Exploitation Threshold**: <br>✅ **Auth Required**: Yes (User must be authenticated). <br>✅ **UI Interaction**: Yes (User must trigger the request). <br>📊 **Complexity**: Low (AC:L).

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

🧪 **Public Exploit**: <br>❌ **No PoC** listed in data. <br>⚠️ **Wild Exploitation**: Unknown, but severity is High (CVSS H). Treat as **critical risk**.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: <br>1️⃣ Check `pip show jupyter-server-proxy`. <br>2️⃣ Verify version is **< 3.2.4** or **< 4.2.0**. <br>3️⃣ Scan for JupyterHub deployments using this proxy.

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Official Fix**: <br>✅ **Yes**. Update to **v3.2.4+** or **v4.2.0+**. <br>🔗 **Patch**: See GitHub commit `7abc9dc` and advisory `GHSA-fvcq-4x64-hqxr`.

Q9What if no patch? (Workaround)

🛑 **No Patch Workaround**: <br>1️⃣ **Disable** Jupyter Server Proxy if not needed. <br>2️⃣ **Restrict** access to JupyterHub via strict firewall rules. <br>3️⃣ **Monitor** logs for suspicious external process spawns.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH** <br>⚡ **Priority**: Patch immediately. CVSS Score is High (9.8 implied by C:H/I:H/A:H). Do not ignore!

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Vulnerability detail Full AI analysis (login) jupyterhub CWE-79