CVE-2020-37041: PYSEC-2026-114 - OpenCTI 3.3.1 is vulnerable to a directory traversal attack via the static/css endpoint. An…

CVE-2020-37041 · Severity: low · CVSS 3.1 · Published 2026-01-30

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.

Technologies: pycti (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2020-37041 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-37041 being exploited in the wild.
How severe is CVE-2020-37041?
Low severity, with a CVSS score of 3.1, published 30 January 2026.
Which products and versions are affected?
pycti (PyPI) ECOSYSTEM:introduced=0,last_affected=3.3.1.
Is there a fix for CVE-2020-37041?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2020-37041?
Check whether you run pycti (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • pycti (PyPI) ECOSYSTEM:introduced=0,last_affected=3.3.1

Identifiers

  • CVE-2020-37041
  • PYSEC-2026-114

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