Description
OpenCTI 3.3.1 is vulnerable to a directory traversal attack via the static/css endpoint. An unauthenticated attacker can read arbitrary files from the filesystem by sending crafted GET requests with path traversal sequences (e.g., '../') in the URL. For example, requesting /static/css//../../../../../../../../etc/passwd returns the contents of /etc/passwd. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Filigran | OpenCTI | 3.3.1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | pycti | <= 3.3.1 | — | PYSEC-2026-114 |
References
- ExploitDB-48595 exploit
- OpenCTI Official Homepage product
- OpenCTI GitHub Repository product
- VulnCheck Advisory: OpenCTI 3.3.1 - Directory Traversal third-party-advisory