CVE-2026-76821: Uncontrolled Resource Consumption

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260706.0, the JSON ingestion mapper's extractWithRegexp formula function compiled a user-supplied regular expression with the JavaScript RegExp engine in...

CVE-2026-76820: Server-Side Request Forgery (SSRF)

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260701.0, the synchronizerFetch GraphQL query called fetchRemoteStreams after checking only that a remote stream URL used HTTP or HTTPS. The backend did not apply the ingestion deny lis...

PT-2026-92468

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260701.0, the synchronizerFetch GraphQL query called fetchRemoteStreams after checking only that a remote stream URL used HTTP or HTTPS. The backend did not apply the ingestion deny lis...

PT-2026-92469

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260706.0, the JSON ingestion mapper's extractWithRegexp formula function compiled a user-supplied regular expression with the JavaScript RegExp engine in...

opencti v7.260907.0

Note: THREAD 2026 — 15 October, Paris. Our community conference for threat intelligence and cyber defense practitioners. Talks, labs, workshops, and an evening social. Join us → Introduction OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence...

opencti v7.260824.0

Introduction OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. It has been created in order to structure, store, organize and visualize technical and non-technical information about cyber threats. The structuration of th...

OpenCTI Auth Bypass (CVE-2026-27960)

CVE-2026-27960 in OpenCTI 6.6.0 through 6.9.12: authenticateUserByTokenOrUserId looks up users by bearer token without verifying it equals apitoken. The compile-time admin internalid 88ec0c6a-13ce-5e39-b486-354fe4a7084f authenticates as admin on every deployment. !/usr/bin/env python3 -- coding:...

OpenCTI CVE-2026-27960 Auth Bypass Detect

Detects CVE-2026-27960 in OpenCTI 6.6.0 through 6.9.12: authenticateUserByTokenOrUserId looks up users by bearer token without verifying it equals apitoken. The admin internalid 88ec0c6a-13ce-5e39-b486-354fe4a7084f is identical across deployments and authenticates as admin when sent as a bearer...

opencti v7.260807.0

Introduction OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. It has been created in order to structure, store, organize and visualize technical and non-technical information about cyber threats. The structuration of th...

📄 OpenCTI 7.260325.0 Authorization Bypass

A proof of concept exploit for an authorization bypass vulnerability in OpenCTI version 7.260325.0. The vulnerability affects OpenCTI versions prior to 7.260326.0 and allows a low-privileged authenticated user with the KNOWLEDGEKNUPDATE capability to bypass confidence-level and object-marking...

opencti v7.260803.0

Introduction OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. It has been created in order to structure, store, organize and visualize technical and non-technical information about cyber threats. The structuration of th...

opencti v7.260728.0

Introduction OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. It has been created in order to structure, store, organize and visualize technical and non-technical information about cyber threats. The structuration of th...

opencti v7.260722.0

Introduction OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. It has been created in order to structure, store, organize and visualize technical and non-technical information about cyber threats. The structuration of th...

opencti v7.260715.0

Introduction OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. It has been created in order to structure, store, organize and visualize technical and non-technical information about cyber threats. The structuration of th...

PYSEC-2026-3446

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260401.0, the OpenCTI GraphQL API exposes a script filter operator in its FilterOperator enum that allows any authenticated user with the KNOWLEDGE capability to pass user-supplied...

edf-centrifuge (>=1.0.0, <=1.0.1), opencti-excel-uploader (1.1.0) potentially affected by CVE-2026-35210 via pycti (6.9.29)

pycti PYPI version 6.9.29 is affected by a known vulnerability. The following packages have a transitive dependency on pycti and may be impacted: - edf-centrifuge =1.0.0, =1.0.1 - opencti-excel-uploader 1.1.0 Source cves: CVE-2026-35210 Source advisory: OSV:PYSEC-2026-3445...

PYSEC-2026-3446

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260401.0, the OpenCTI GraphQL API exposes a script filter operator in its FilterOperator enum that allows any authenticated user with the KNOWLEDGE capability to pass user-supplied...

edf-centrifuge (>=1.0.0, <=1.0.1), opencti-excel-uploader (1.1.0) potentially affected by CVE-2026-35211 via pycti (6.9.29)

pycti PYPI version 6.9.29 is affected by a known vulnerability. The following packages have a transitive dependency on pycti and may be impacted: - edf-centrifuge =1.0.0, =1.0.1 - opencti-excel-uploader 1.1.0 Source cves: CVE-2026-35211 Source advisory: OSV:PYSEC-2026-3446...

PYSEC-2026-3445

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 KNOWLEDGEKNUPDATE permission to bypass Confidence Level validation and Object Marking...

CVE-2026-35210

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 KNOWLEDGEKNUPDATE permission to bypass Confidence Level validation and Object Marking...