Kurz gesagt
- CVE-2025-26621 ist eine Schwachstelle (MITTEL (CVSS 6.8)) in pycti, opencti (citeum).
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.42%, höher als bei 36.4% aller Schwachstellen.
- Abhilfe: auf 6.5.2 oder neuer aktualisieren.
| Package | Affected versions | Patched versions |
|---|
| pycti PyPI | < 6.5.2
| 6.5.2
|
| opencti | < 6.5.2
| 6.5.2
|
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.
NVD 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.
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