{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-84360",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-09-01T16:27:58.128Z",
        "datePublished": "2026-10-12T21:08:04.687Z",
        "dateUpdated": "2026-10-12T21:08:04.687Z"
    },
    "containers": {
        "cna": {
            "title": "Nginx UI: OTP secure-session step-up can be bypassed via MCP configuration tools",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-288",
                            "lang": "en",
                            "description": "CWE-288: Authentication Bypass Using an Alternate Path or Channel",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 8.1,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-vc32-4gwf-77xp",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-vc32-4gwf-77xp"
                },
                {
                    "name": "https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2"
                },
                {
                    "name": "https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1"
                }
            ],
            "affected": [
                {
                    "vendor": "0xJacky",
                    "product": "nginx-ui",
                    "versions": [
                        {
                            "version": "< 2.4.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-12T21:08:04.687Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, the HTTP configuration mutation routes require RequireSecureSession, but /mcp and /mcp_message require only ordinary authentication before exposing nginx_config_add and nginx_config_modify. An OTP-enabled user with a normal JWT but no valid X-Secure-Session-ID can therefore create or modify Nginx configuration and trigger reload behavior through MCP, bypassing the intended step-up control. This issue is fixed in version 2.4.1."
                }
            ],
            "source": {
                "advisory": "GHSA-vc32-4gwf-77xp",
                "discovery": "UNKNOWN"
            }
        }
    }
}