CVE-2026-2558

6.3 MEDIUM

📋 TL;DR

This CVE describes a Server-Side Request Forgery (SSRF) vulnerability in GeekAI versions up to 4.2.4. Attackers can manipulate the 'url' parameter in the Download function to make the server send unauthorized requests to internal or external systems. Any organization running vulnerable GeekAI instances is affected.

💻 Affected Systems

Products:
  • GeekAI
Versions: Up to and including 4.2.4
Operating Systems: All platforms running GeekAI
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the api/handler/net_handler.go file's Download function. No special configuration required for exploitation.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could access internal services, exfiltrate sensitive data, or pivot to other systems within the network.

🟠

Likely Case

Unauthorized access to internal HTTP services, potential data leakage from internal APIs or metadata services.

🟢

If Mitigated

Limited to accessing only allowed external resources with proper network segmentation and input validation.

🌐 Internet-Facing: HIGH - Remote exploitation is possible and public exploit exists.
🏢 Internal Only: MEDIUM - Internal attackers could still exploit but requires network access.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploit has been published according to references. Remote exploitation is confirmed possible.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch available. Vendor has not responded to issue report. Monitor GitHub repository for updates.

🔧 Temporary Workarounds

Input Validation and URL Whitelisting

all

Implement strict input validation on the 'url' parameter to only allow specific domains or patterns.

Modify api/handler/net_handler.go to add URL validation before processing

Network Segmentation

all

Restrict GeekAI server's outbound network access to only necessary external services.

Configure firewall rules to limit outbound connections from GeekAI server

🧯 If You Can't Patch

  • Implement Web Application Firewall (WAF) rules to block SSRF patterns in requests
  • Monitor network traffic from GeekAI server for unusual outbound connections

🔍 How to Verify

Check if Vulnerable:

Check GeekAI version. If version ≤ 4.2.4 and has api/handler/net_handler.go with Download function, it's vulnerable.

Check Version:

Check GeekAI configuration files or run 'geekai --version' if available

Verify Fix Applied:

Test the Download endpoint with SSRF payloads. If requests to internal IPs/localhost are blocked, fix is working.

📡 Detection & Monitoring

Log Indicators:

  • Unusual URL patterns in Download function requests
  • Requests to internal IP addresses (127.0.0.1, 192.168.*, 10.*, 172.16-31.*)

Network Indicators:

  • GeekAI server making unexpected outbound HTTP requests
  • Requests to metadata services (169.254.169.254)

SIEM Query:

source="geekai" AND (url="*://127.0.0.1*" OR url="*://192.168.*" OR url="*://10.*" OR url="*://172.16.*" OR url="*://172.17.*" OR url="*://172.18.*" OR url="*://172.19.*" OR url="*://172.20.*" OR url="*://172.21.*" OR url="*://172.22.*" OR url="*://172.23.*" OR url="*://172.24.*" OR url="*://172.25.*" OR url="*://172.26.*" OR url="*://172.27.*" OR url="*://172.28.*" OR url="*://172.29.*" OR url="*://172.30.*" OR url="*://172.31.*")

🔗 References

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