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.
Published: 2026-01-30
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 13 Feb 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Citeum
Citeum opencti
CPEs cpe:2.3:a:citeum:opencti:3.3.1:*:*:*:*:*:*:*
Vendors & Products Citeum
Citeum opencti

Tue, 03 Feb 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Opencti-platform
Opencti-platform opencti
Vendors & Products Opencti-platform
Opencti-platform opencti

Mon, 02 Feb 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 30 Jan 2026 22:30:00 +0000

Type Values Removed Values Added
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.
Title OpenCTI 3.3.1 - Directory Traversal
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Citeum Opencti
Opencti-platform Opencti
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-05T01:27:37.387Z

Reserved: 2026-01-28T18:18:30.524Z

Link: CVE-2020-37041

cve-icon Vulnrichment

Updated: 2026-02-02T20:11:36.198Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-30T23:16:09.750

Modified: 2026-02-13T17:56:55.973

Link: CVE-2020-37041

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-02T09:26:58Z

Weaknesses