Is this vulnerability remotely exploitable?

Yes. If the OpenCTI API is accessible over a network to an attacker, the flaw can be exploited remotely without prior authentication.

Does an attacker need valid credentials to exploit this issue?

No. The vulnerability allows unauthenticated users to issue API queries as existing accounts, including the default admin, so valid credentials are not required.

What is the safest general fix pattern for this type of vulnerability?

The safest pattern is to enforce strict, centralized authentication where every request to protected endpoints must present a cryptographically strong, verifiable credential or token that is tightly bound to a single user identity, and to avoid trusting any identity-related data from the client without verification.

Severity:

CRITICAL RISK

(9.8)

Improper Authentication (CWE-287) Enabling Privilege Escalation in OpenCTI API

CVE-2026-27960

Published:

May 5, 2026

Status:

Received

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-918

HIGH RISK

HIGH

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Unauthorized Access to Internal Resources via SSRF

May 6, 2026

CWE-863

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Improper Authentication

CWE:

CWE-287

Impact:

Authentication Bypass and Privilege Escalation to Administrator

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Authentication

CWE:

CWE-287

Impact:

Authentication Bypass and Privilege Escalation to Administrator

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Improper Authentication (CWE-287) Enabling Privilege Escalation in OpenCTI API

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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