High 7.5Published Jan 30, 2026

CVE-2020-37041OpenCTI 3.3.1 is vulnerable to a directory traversal attack via the static/css endpoint.

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects citeum opencti. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

citeum opencti citeum:opencti	3.3.1	NVD

References

https://github.com/OpenCTI-Platform/openctiproduct
https://www.exploit-db.com/exploits/48595exploit, third-party-advisory, vdb-entry
https://www.opencti.io/product
https://www.vulncheck.com/advisories/opencti-directory-traversalbroken-link

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.