CVE-2026-35212

Description

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Versions prior to 7.260227.0 are vulnerable to XSS in the rendering of email-message observable body data. The content of the body field isn't appropriately sanitized when being rendered. Does require user interaction but could be exploited by someone sharing stix or any of the ingester. This could lead to CSRF and then large scale session theft. Version 7.260227.0 contains a fix.

PUBLISHED Reserved 2026-04-01 | Published 2026-06-02 | Updated 2026-06-02 | Assigner GitHub_M

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

References

github.com/...pencti/security/advisories/GHSA-rg6r-x26x-63vq

cve.org (CVE-2026-35212)

nvd.nist.gov (CVE-2026-35212)

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