CVE-2026-27960: OpenCTI privilege escalation and unauthenticated access via default admin account
OpenCTI-Platform · opencti
Affected: OpenCTI-Platform · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 94% of scored CVEs
DescriptionCVE.org
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. In versions 6.6.0 through 6.9.12, there is a privilege escalation vulnerability that can be exploited by unauthenticated attackers to query the API as any existing user, including the default admin account. This issue has been fixed in version 6.9.13. As a workaround, the default admin can be disabled using the `APP__ADMIN__EXTERNALLY_MANAGED` configuration.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- OpenCTI-Platform · opencti>= 6.6.0, < 6.9.13
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- OpenCTI < 6.9.13 - Authentication Bypass via User Impersonation · nuclei template in projectdiscovery/nuclei-templates
- Vendor
- OpenCTI-Platform
- Published
- May 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-27960 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.