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CVE-2026-27960 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: May 5, 2026

OpenCTI - Privilege Escalation

Published: May 5, 2026Updated: May 5, 2026Remote Exploitable

Overview

OpenCTI 6.6.0 through 6.9.12 contains a privilege escalation vulnerability caused by improper API access control, letting unauthenticated attackers query the API as any user including admin, exploit requires no authentication.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Unauthenticated attackers can escalate privileges to any user, including admin, compromising the entire system.

Mitigation

Update to version 6.9.13 or later.

References

https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-6vvv-vmfr-xhrx

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-27960
Severity: Critical
CVSS Score: 9.8
Type: broken_access_control
Status: new

CWE

CWE-287

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H