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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.

PUBLISHED Reserved 2025-02-12 | Published 2025-05-19 | Updated 2025-05-19 | Assigner GitHub_M




HIGH: 7.6CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H

Problem types

CWE-94: Improper Control of Generation of Code ('Code Injection')

Product status

< 6.5.2
affected

References

github.com/...pencti/security/advisories/GHSA-gq63-jm3h-374p

github.com/...pencti/security/advisories/GHSA-mf88-g2wq-p7qm

cve.org (CVE-2025-26621)

nvd.nist.gov (CVE-2025-26621)

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