Vulnerability-Lookup

PYSEC-2026-114

Vulnerability from pysec - Published: 2026-01-30 23:16 - Updated: 2026-05-21 14:54

Details

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.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Impacted products

Name	purl
pycti	pkg:pypi/pycti

Aliases

CVE-2020-37041

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "pycti",
        "purl": "pkg:pypi/pycti"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.1",
        "1.2.11",
        "1.2.12",
        "1.2.13",
        "1.2.14",
        "1.2.15",
        "1.2.2",
        "1.2.4",
        "1.2.9",
        "2.0.0",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.1.10",
        "2.1.11",
        "2.1.12",
        "2.1.13",
        "2.1.3",
        "2.1.4",
        "2.1.5",
        "2.1.6",
        "2.1.7",
        "2.1.8",
        "2.1.9",
        "3.0.0",
        "3.0.1",
        "3.0.2",
        "3.0.3",
        "3.1.0",
        "3.1.1",
        "3.1.2",
        "3.2.0",
        "3.2.1",
        "3.2.2",
        "3.2.3",
        "3.2.4",
        "3.2.5",
        "3.2.6",
        "3.2.7",
        "3.3.0",
        "3.3.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-37041"
  ],
  "details": "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., \u0027../\u0027) 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.",
  "id": "PYSEC-2026-114",
  "modified": "2026-05-21T14:54:40.631087Z",
  "published": "2026-01-30T23:16:09.750Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.opencti.io/"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/opencti-directory-traversal"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/OpenCTI-Platform/opencti"
    },
    {
      "type": "EVIDENCE",
      "url": "https://www.exploit-db.com/exploits/48595"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2020-37041 (GCVE-0-2020-37041)

Vulnerability from cvelistv5 – Published: 2026-01-30 22:07 – Updated: 2026-03-05 01:27

Title

OpenCTI 3.3.1 - Directory Traversal

Summary

Severity

7.1 (High)


                        
                          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

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-02 20:11 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://www.exploit-db.com/exploits/48595	exploit
https://www.opencti.io/	product
https://github.com/OpenCTI-Platform/opencti	product
https://www.vulncheck.com/advisories/opencti-dire…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Filigran	OpenCTI	Affected: 3.3.1 cpe:2.3:a:citeum:opencti:3.3.1:::::::*

Date Public

2020-03-05 00:00

Credits

Raif Berkay Dincel

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.