CVE-2026-35210
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260326.0, an authorization b
CVSS
7.1
Alto
EPSS
0.3%
p17
KEV
—
Exploit Today
5
0-100
Publicado: 8 jul 2026 · Última mod.: 13 jul 2026 · CWE-639 · CWE-863
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260326.0, an authorization bypass vulnerability in OpenCTI allows any authenticated user with KNOWLEDGE_KNUPDATE permission to bypass Confidence Level validation and Object Marking restrictions by injecting the synchronized-upsert: true HTTP header, enabling attackers to downgrade confidence levels, remove security markings such as TLP:RED, manipulate relationships, and affect STIX object types including Indicators, ThreatActors, Malware, and Reports. This issue is fixed in version 7.260326.0.
- github.comhttps://github.com/OpenCTI-Platform/opencti/commit/134531ddf5ecf741006b7f0870b7c36711b96540
- github.comhttps://github.com/OpenCTI-Platform/opencti/pull/14243
- github.comhttps://github.com/OpenCTI-Platform/opencti/releases/tag/7.260326.0
- github.comhttps://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-36fr-4m54-94mj