CVE-2025-53358

6.5 MEDIUM

📋 TL;DR

This vulnerability in kotaemon allows attackers to perform directory traversal attacks by submitting malicious file paths containing sequences like '../../../../../.env'. This enables unauthorized access to sensitive files on the server. Users running kotaemon versions 0.10.6 and earlier are affected.

💻 Affected Systems

Products:
  • kotaemon
Versions: 0.10.6 and prior
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in the file upload/indexing functionality of the RAG tool.

⚠️ 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

Complete server compromise through exfiltration of sensitive files like SSH keys, database credentials, configuration files, and system secrets.

🟠

Likely Case

Exfiltration of application secrets, configuration files, and sensitive user data stored on the server filesystem.

🟢

If Mitigated

Limited impact with proper input validation and file system permissions restricting access to sensitive directories.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Directory traversal is a well-known attack pattern with simple exploitation requiring only path manipulation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 0.10.7

Vendor Advisory: https://github.com/Cinnamon/kotaemon/security/advisories/GHSA-jw4w-xcvf-jq5x

Restart Required: Yes

Instructions:

1. Update kotaemon to version 0.10.7 or later. 2. Apply commit 37cdc28ceb46e505d25221584daf1fe61e26b2cc. 3. Restart the kotaemon service.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement server-side validation to reject file paths containing directory traversal sequences

Implement regex filter: if re.search(r'\.\.(/|\\)', file_path): reject_input()

File System Sandboxing

linux

Run kotaemon in a container or chroot jail with restricted file system access

docker run -v /safe/path:/app/data kotaemon:tag

🧯 If You Can't Patch

  • Disable file upload/indexing functionality in kotaemon configuration
  • Implement web application firewall (WAF) rules to block directory traversal patterns

🔍 How to Verify

Check if Vulnerable:

Check if running kotaemon version 0.10.6 or earlier and if file upload accepts paths with '../' sequences

Check Version:

pip show kotaemon | grep Version

Verify Fix Applied:

Test that submitting paths with '../' sequences are rejected and verify version is 0.10.7+

📡 Detection & Monitoring

Log Indicators:

  • File access attempts with '../' patterns in paths
  • Unauthorized file access errors in application logs

Network Indicators:

  • HTTP requests containing '../' sequences in file parameters

SIEM Query:

source="kotaemon.logs" AND "../"

🔗 References

📤 Share & Export