CVE-2025-33203
📋 TL;DR
This vulnerability in NVIDIA NeMo Agent Toolkit UI for Web allows attackers to perform Server-Side Request Forgery (SSRF) through the chat API endpoint. Exploitation could lead to information disclosure from internal systems or denial of service. Organizations using NVIDIA NeMo Agent Toolkit UI for Web are affected.
💻 Affected Systems
- NVIDIA NeMo Agent Toolkit UI for Web
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains access to internal systems, exfiltrates sensitive data, or causes complete service disruption by making the server request malicious internal resources.
Likely Case
Information disclosure from internal services accessible to the server, potentially exposing credentials, configuration data, or internal APIs.
If Mitigated
Limited impact with proper network segmentation and input validation, potentially only affecting non-critical internal services.
🎯 Exploit Status
SSRF vulnerabilities typically have low exploitation complexity once the vulnerable endpoint is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check NVIDIA advisory for specific patched version
Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5726
Restart Required: Yes
Instructions:
1. Review NVIDIA advisory CVE-2025-33203
2. Download and apply the latest patched version of NVIDIA NeMo Agent Toolkit UI for Web
3. Restart the service/application
4. Verify the fix is applied
🔧 Temporary Workarounds
Network Segmentation
allRestrict outbound network access from the vulnerable server to only necessary internal services
Input Validation
allImplement strict input validation on the chat API endpoint to reject malicious URLs
🧯 If You Can't Patch
- Implement strict network segmentation to limit server outbound connections
- Deploy a web application firewall (WAF) with SSRF protection rules
🔍 How to Verify
Check if Vulnerable:
Check if running a vulnerable version of NVIDIA NeMo Agent Toolkit UI for Web and if chat API endpoint is accessibleCheck Version:
Check application version through NVIDIA NeMo Agent Toolkit UI admin interface or configuration filesVerify Fix Applied:
Verify the application version matches the patched version from NVIDIA advisory and test SSRF attempts are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from the server
- Chat API requests with suspicious URL parameters
- Error logs indicating failed external requests
Network Indicators:
- Unexpected outbound connections from the server to internal services
- HTTP requests to internal IP addresses from the server
SIEM Query:
source="nemo-agent-ui" AND (url_contains="localhost" OR url_contains="127.0.0.1" OR url_contains="internal")