Description

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.5.2, any user with the capability manage customizations can edit webhook that will execute javascript code. This can be abused to cause a denial of service attack by prototype pollution, making the node js server running the OpenCTI frontend become unavailable. Version 6.5.2 fixes the issue.

INFO

Published Date :

2025-05-19T16:01:50.419Z

Last Modified :

2025-05-19T18:01:05.372Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-26621 vulnerability.

Vendors Products
Citeum
  • Opencti
Opencti-platform
  • Opencti
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-26621.

URL Resource
https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-gq63-jm3h-374p cve-icon cve-icon
https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-mf88-g2wq-p7qm cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
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User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact