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CVE-2026-84313

8.8 · HIGH

Nginx UI is a web user interface for the Nginx web server.

Published Oct 12, 2026CWE-287EPSS 0.54%

Overview

CVE-2026-84313 is a high-severity vulnerability. It was published on October 12, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, POST /api/otp_enroll and POST /api/finish_passkey_register are registered outside RequireSecureSession and accept a normal authenticated session without verifying the current password. An attacker with a stolen JWT can bind an attacker-controlled TOTP secret when the victim has not already enabled TOTP, or can register an attacker-controlled passkey because that path has no equivalent existing-enrollment guard. These changes create persistent account access that can survive a password change and interfere with the legitimate user's authentication. This issue is fixed in version 2.4.1.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2GitHubgithub.com/0xJacky/nginx-ui/releases/tag/v2.4.1GitHubgithub.com/0xJacky/nginx-ui/security/advisories/GHSA-gfrc-g87h-7h5wGitHubgithub.com/0xJacky/nginx-ui/security/advisories/GHSA-gfrc-g87h-7h5w

How CyberStrike helps

Frequently asked questions

What is CVE-2026-84313?

CVE-2026-84313 is a high-severity vulnerability. It was published on October 12, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-84313?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-84313?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-84313?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-84313 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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